The present work describes the processing and tensile characterization of polymer matrix composites (PMC). Two types of E-glass laminates namely woven and chopped are used as a reinforcing materials and epoxy resin constitutes matrix system. Several works has been carried out to prove that strength of glass fibre composites progressively increased with adding fillers. Keeping this in mind the present work successeded in using wollastonite as a filler material, tensile test samples from both woven and chopped type were prepared and tests are conducted as per ASTM standards and corresponding results are tabulated and discussed. The present work also highlights the tensile strength for both woven and chopped laminates were compared. It is observed that use of wollastonite filler influences greatly on tensile properties of polymer matrix composites. And it is also cleared that woven laminates shows higher resistance to tensile loading as compared to chopped laminates.
Experimental study on young’s modulus of f.r.c with bottom ashIJARIIT
The experiment investigation has been conducted on hybrid fibre reinforced concrete (combine of hooked end
polyolefin & steel fiber) get the volume of aggregate fibre 0.6%, 1.1% and 1.3% were readied Workability conditions like
blending, compaction & curing conditions. To adding of uniformly dispersed fibre to concrete will give fitness to the structure
and improve its dynamic, static properties. The cylinder dimensions are 150mmX300mm.The experiment result shows that the
concrete strength of steel fibre with the addition of decrease to PCC. The Young’s Modulus of samples increases with the
amounts of steel fibers in the concrete mix. The form of concrete in which fibres are added is called as FRC. The addition extra
than one or two fibres in the concrete is Called as HFRC. Fibres can be used in tension members in the structures because the
structure will be strongest in compression and weakest in tension members. Here Steel fibre & polyolefin fibre are used as Hybrid
fibres in HFRC. A trial was directed out to ponder the impacts of steel fiber and polyolefin fibre in various extents in concrete.
Compressive strength tests were conducted to know the properties of hardened concrete. The experiment also aimed to study the
capacity of BA as a fine aggregate in concreting mix. Bottom ash is a scrap material available in industries like thermal power
plants. Fiber expansion supposedly enhanced an expansion in compressive quality and ductility respectively. The fine aggregate
is replaced by 15% of bottom ash. The Final Results of this experiment showing the percentage of hybrid fibres it the maximum
performance of the concrete. Adding of HF generally energy absorbing an increases value of strength. The Young’s modulus of
concrete is a very critical factor in the concrete to elastically deform. The whole laboratory experiments were conducted in Malla
Reddy Institute of Technology at CT&HM laboratory, Maisammaguda, Hyderabad.
Dry Sliding Wear Behavior of Glass and Jute Fiber Hybrid Reinforced Epoxy Com...IJERD Editor
Glass Fiber reinforced composites are emerging as a potential material for a wide variety of
industrial applications owing to their good combination of physical and mechanical properties. In recent
decades, glass fiber composites parts are widely used as sliding components in different engineering
applications. Due to the legitimate theoretical and practical importance, the study of tribological performance of
these emerging materials becomes highly decisive. In the present research initiative, two type of reinforcements
are selected there are Glass and jute fibers with matrix of epoxy 551 was used for composite specimen
preparation. The frictional and wear characteristics of the developed composites have been studied under
different sliding conditions. From the results it is conclude that jute is more efficient in improving the
tribological Performance of glass-epoxy composites than the raw glass fiber reinforced epoxy composites.
EXPERIMENTAL STUDY ON WEAR BEHAVIOUR OF SIC FILLED HYBRID COMPOSITES USING TA...IAEME Publication
The popularity of composite materials usage is increasing due to its superior strengthcharacters racing the traditional materials in strength to weight ratio. The developments of new
materials are on the anvil and are growing day by day. In this work, two-body abrasive wear testwith different loads and abrading distances were performed at room temperature by using a pin ona disk apparatus to determine the surface hardness strengthof SiC filled Glass fiber reinforced
with epoxy resin hybrid composites. The results showed that the wear volume increased withincreasing abrading distance and the specific wear rate decreased with increasing abradingdistance and increased with load for SiC particle filled Hybrid composites. Among the filled Hybridcomposites tested, composites with 10% SiC by weightshowed a better tribological behavior result.Also, a taguchi’s experimental design approach to make a parametric analysis of wear behavior of10% SiCG-J-E, 10%SiCG-S-E and 10% SiCG-R-E.hybrid composites werestudied. The systematicexperimentation leads to identificationofsignificantprocessparameters and material variablesthat predominantly influence the specific wear rate.
6.a review on wear behaviour of clutch plate made of peek composite materialEditorJST
The conventional clutch plate made of carbon fiber and ceramic mixture of copper, iron, tin bronze,
silicon dioxide, and/or graphite, typical alloy is a lamellar pearlitic gray iron like G11H20b of which, it can be
replaced by developing of new materials for reducing the wear rate of the clutch plate the materials chosen is
Poly Ether Ether Ketone (PEEK) based composites mixed with silicon carbide powder shows better results in
which it can be manufactured by the injection moulding process and it is tested in Friction and wear experiment
wear run under constant temperature in a pin-on-disc arrangement, PEEK and its composites used in this
investigated the friction coefficient decreases with the increasing load on PEEK. The composite showed a very
low friction coefficient and wear rate increase in the normal applied load sliding distance decreases wear rate.
Further the wear and friction behaviour decreases with increases the gradually by addition of fillers.
Experimental study on young’s modulus of f.r.c with bottom ashIJARIIT
The experiment investigation has been conducted on hybrid fibre reinforced concrete (combine of hooked end
polyolefin & steel fiber) get the volume of aggregate fibre 0.6%, 1.1% and 1.3% were readied Workability conditions like
blending, compaction & curing conditions. To adding of uniformly dispersed fibre to concrete will give fitness to the structure
and improve its dynamic, static properties. The cylinder dimensions are 150mmX300mm.The experiment result shows that the
concrete strength of steel fibre with the addition of decrease to PCC. The Young’s Modulus of samples increases with the
amounts of steel fibers in the concrete mix. The form of concrete in which fibres are added is called as FRC. The addition extra
than one or two fibres in the concrete is Called as HFRC. Fibres can be used in tension members in the structures because the
structure will be strongest in compression and weakest in tension members. Here Steel fibre & polyolefin fibre are used as Hybrid
fibres in HFRC. A trial was directed out to ponder the impacts of steel fiber and polyolefin fibre in various extents in concrete.
Compressive strength tests were conducted to know the properties of hardened concrete. The experiment also aimed to study the
capacity of BA as a fine aggregate in concreting mix. Bottom ash is a scrap material available in industries like thermal power
plants. Fiber expansion supposedly enhanced an expansion in compressive quality and ductility respectively. The fine aggregate
is replaced by 15% of bottom ash. The Final Results of this experiment showing the percentage of hybrid fibres it the maximum
performance of the concrete. Adding of HF generally energy absorbing an increases value of strength. The Young’s modulus of
concrete is a very critical factor in the concrete to elastically deform. The whole laboratory experiments were conducted in Malla
Reddy Institute of Technology at CT&HM laboratory, Maisammaguda, Hyderabad.
Dry Sliding Wear Behavior of Glass and Jute Fiber Hybrid Reinforced Epoxy Com...IJERD Editor
Glass Fiber reinforced composites are emerging as a potential material for a wide variety of
industrial applications owing to their good combination of physical and mechanical properties. In recent
decades, glass fiber composites parts are widely used as sliding components in different engineering
applications. Due to the legitimate theoretical and practical importance, the study of tribological performance of
these emerging materials becomes highly decisive. In the present research initiative, two type of reinforcements
are selected there are Glass and jute fibers with matrix of epoxy 551 was used for composite specimen
preparation. The frictional and wear characteristics of the developed composites have been studied under
different sliding conditions. From the results it is conclude that jute is more efficient in improving the
tribological Performance of glass-epoxy composites than the raw glass fiber reinforced epoxy composites.
EXPERIMENTAL STUDY ON WEAR BEHAVIOUR OF SIC FILLED HYBRID COMPOSITES USING TA...IAEME Publication
The popularity of composite materials usage is increasing due to its superior strengthcharacters racing the traditional materials in strength to weight ratio. The developments of new
materials are on the anvil and are growing day by day. In this work, two-body abrasive wear testwith different loads and abrading distances were performed at room temperature by using a pin ona disk apparatus to determine the surface hardness strengthof SiC filled Glass fiber reinforced
with epoxy resin hybrid composites. The results showed that the wear volume increased withincreasing abrading distance and the specific wear rate decreased with increasing abradingdistance and increased with load for SiC particle filled Hybrid composites. Among the filled Hybridcomposites tested, composites with 10% SiC by weightshowed a better tribological behavior result.Also, a taguchi’s experimental design approach to make a parametric analysis of wear behavior of10% SiCG-J-E, 10%SiCG-S-E and 10% SiCG-R-E.hybrid composites werestudied. The systematicexperimentation leads to identificationofsignificantprocessparameters and material variablesthat predominantly influence the specific wear rate.
6.a review on wear behaviour of clutch plate made of peek composite materialEditorJST
The conventional clutch plate made of carbon fiber and ceramic mixture of copper, iron, tin bronze,
silicon dioxide, and/or graphite, typical alloy is a lamellar pearlitic gray iron like G11H20b of which, it can be
replaced by developing of new materials for reducing the wear rate of the clutch plate the materials chosen is
Poly Ether Ether Ketone (PEEK) based composites mixed with silicon carbide powder shows better results in
which it can be manufactured by the injection moulding process and it is tested in Friction and wear experiment
wear run under constant temperature in a pin-on-disc arrangement, PEEK and its composites used in this
investigated the friction coefficient decreases with the increasing load on PEEK. The composite showed a very
low friction coefficient and wear rate increase in the normal applied load sliding distance decreases wear rate.
Further the wear and friction behaviour decreases with increases the gradually by addition of fillers.
Study and Analysis on Mechanical and Wear Behavior of SiC Filled Epoxy Compositepaperpublications3
Abstract: Silicon carbide possesses ample reinforcing potential to be used as a filler material in polymer matrix composites. Successful fabrication of epoxy matrix composites reinforced with silicon carbide particles is possible by simple hand-lay-up technique. These composites possess very low amount of porosity and improved micro-hardness, also it provide slightly superior tensile, flexural and inter-laminar shear strengths than those of the neat epoxy. This study reveals that silicon carbide possesses good filler characteristics as it improves the sliding wear resistance of the polymeric resin. Dry sliding wear characteristics of these composites have been gainfully analysed using a design-of-experiment approach based on Taguchi method. The analysis of experimental results shows that factors like filler content, sliding velocity and normal load, in this sequence, are identified as the significant factors affecting the specific wear rate of the composites under investigation. The silicon carbide-epoxy composites fabricated and experimented upon in this investigation are found to have adequate potential for a wide variety of applications particularly in wear prone environment. When wear is not the predominant degrading factor, epoxy without silicon carbide can be recommended. However, the weight fraction of filler in the composite is to be decided from the view point of required strength. If the place of use is hostile with sliding wear situations, then silicon carbide epoxy composites are to be preferred due to their fairly good wear resistance. Use of these composites may be suggested in applications like engineering structures in dusty environment and low cost building materials in desert.
STUDY OF STRENGTH PROPERTIES OF POLYESTER FIBRE REINFORCED CONCRETEJournal For Research
Fiber Reinforced Concrete" is relatively a new construction material developed through extensive research and development work during the last two decades. Fiber Reinforced Concrete (FRC) is defined as composite material which consists of conventional concrete reinforced by randomly dispersed short length fibers of specific geometry, made of steel, synthetic (polymeric) or natural fibers. Plain cement concrete has very low tensile strength and causes formation of micro cracks in stressed and unstressed states of concrete. Also, it has a low strain at fracture and brittleness with less ductility especially in case of High Performance Concrete. Fiber Reinforced Concrete is the answer to modify these properties of Plain Concrete. The recent development of Secondary reinforcement in Concrete in various fields has provided a strong technical base for improving the quality of the material. To overcome the deficiencies fibers are used as secondary reinforcement. FRC is Portland cement concrete reinforced with more or less randomly distributed fibers. The choice of fibers varies from synthetic organic materials such as polypropylene or carbon, synthetic inorganic such as steel or polyster, natural organic such as cellulose or sisal to natural inorganic asbestos. The interaction between the fiber and concrete matrix is the fundamental property that affects the performance of a cement based fiber composite materials. An understanding of this interaction is needed for forecasting the fiber contribution and for predicting the behavior of such composites. In present investigation concrete with addition of polyester fiber Recron 3s at various at dosages of 0.25%, 0.50%, 0.75% and 1.00% by weight of cement in the mix design is studied to find the optimum dosage of Polyster fiber for concrete.
Abstract In the last decades the composites have been widely used in the construction, automobile and aerospace industries. Among them,
Natural fiber composites are emerging as low cost, lightweight and superior alternatives to synthetic fiber composites. This study
related to the development of bio-degradable composites using Epoxy resin and Sisal/Jute fibers. The fibers are chemically
treated at different percentages of NaOH i.e.,3%, 6% and 9%. Tensile and flexural strength of the composites were determined
using UTM. The natural frequencies of the cantilever composite beam were determined analytically using Euler’s theory and
numerically using Ansys 15.0. From the results, the results agree close to each other.
Keywords: Sisal Fiber, Jute Fiber, Alkali Treatment, Modal Analysis.
Hybrid polymer composites are the materials made by combining two or more
different type of fibers in a matrix. Hybrid polymer composite material offers the
designer to obtain the required properties in a controlled considerable extent by the
choice of fibers and matrix. The properties are tailored in the material by selecting
different kinds of fiber incorporated in the same resin matrix. They offer wide range of
properties that cannot be obtained with a single type of reinforcement. Due to its high
specific strengths, high specific modulus, low densities, light weight etc. based on its
applications. Presently they are playing a vital role in aerospace, defence, transport,
sport applications. Worldwide researches are keenly interested in finding out their
behavior in real life exposed to various environmental conditions, variety of loads etc.
In this paper, We fabricated carbon, e-glass and hybrid composites by using hand
layup technique in uni-directional orientation with epoxy as a matrix material and
conducted various tests such as tensile, compression on Universal Testing Machine
(UTM) and hardness. The results are validated with FEA and observed that Al-6061-
T6 which is used in manufacturing of military aircraft landing mats, truck bodies and
frames etc. has a tensile strength of about 310.25Mpa.The tensile strength of hybrid
fiber is 341Mpa which is higher than Al 6061-T6. We have compared the
experimental results with ansys results and found that the experimental values are
very close to the ansys results. But when compared within the fibers carbon fiber
exhibited more strength when compared to other fibers
Indonesia is one of the countries that has a very high seismic intensity. To meet
the standardization of the building design, several studies were conducted, including
the use of base isolation in residential buildings. The base isolator consists of several
layers of rubber and steel or lamination fibers which function to increase the vertical
stiffness of the isolator. Some has managed to use lamination fiber to make isolator
costs cheaper. This research uses fiberglass type net and woven roving types WR4
and WR6. Fiberglass is modeled according to the ASTM standard dogbone.
Fiberglass is tested as a standard matrix and is a composite. As a composite, the first
type is combined with 2504H Eternal resins and mepoxe catalyst, and second with
adhesive lord chemlok. The effect of curing on a temperature of 150 °C was observed
according to the conditions of making Low-Cost Rubber Base Isolation (LCRBI) on
the printing machine.
The result, fiberglass type Net matrix has a higher tensile strength compared to
other materials. For fiberglass net matrix composite has increased tensile strength in
the oven for 1 hour and returns to the oven for 2 hours at 150 °C. While the
composites of the WR4 and WR6 matrix materials have tensile strengths below 500
MPa and have a relatively small increase and decrease in value. Net type fiberglass is
suitable to be used as reinforcement on low-cost rubber base isolation for residential
areas, where with a small service load from the house it is needed a base isolator that
is not too stiff (optimal elastic). In addition, the fiberglass type net has a hollow
shape, allowing the layer between the rubbers to be more perfect for perfect
attachment
SANDWICH DESIGN MODEL FOR ALUMINUM AND KENAF-POLYESTER COMPOSITEIAEME Publication
This paper presents the design and analysis of the sandwich model for casted
metal-natural fiber composite. The objective of this research is to analyze the
sandwich model of natural fiber composite to be introduced in metal matrix alloys for
engineering application purposes. The sandwich model is the hybrid material
combined with layers aluminum LM6 and kenaf composite laminated. Overall
thickness for each design is 35mm. For the sandwich design, each layer of LM6 is
10mm thickness and each layer of kenaf-polyester composites is 15mm to make it 3
layers with 35mm thickness. The dimensions for both models are referring based on
the requirement of ASTM C393, Standard Test Method for Flexural Properties of
Sandwich Construction. Based on the simulation results, it is feasible to use the
sandwich model of LM6 with kenaf-polyester composite. In addition, this simulation
result strongly supports the potential for this hybrid laminate of LM6 and kenafpolyester
composite as a substitute for solid LM6, reducing the usage of LM6
substance and introducing natural fiber element into engineering application.
Influence of Carbon & Glass Fiber Reinforcements on Flexural Strength of Epox...IJERA Editor
Hybrid composite materials are more attracted by the engineers because of their properties like stiffness and high specific strength which leads to the potential application in the area of aerospace, marine and automobile sectors. In the present investigation, the flexural strength and flexural modulus of carbon and glass fibers reinforced epoxy hybrid composites were studied. The vacuum bagging technique was adopted for the fabrication of polymer hybrid composite materials. The hardness, flexural strength and flexural modulus of the hybrid composites were determined as per ASTM standards. The hardness, flexural strength and flexural modulus were improved as the fiber reinforcement contents increased in the epoxy matrix material.
Study and Analysis on Mechanical and Wear Behavior of SiC Filled Epoxy Compositepaperpublications3
Abstract: Silicon carbide possesses ample reinforcing potential to be used as a filler material in polymer matrix composites. Successful fabrication of epoxy matrix composites reinforced with silicon carbide particles is possible by simple hand-lay-up technique. These composites possess very low amount of porosity and improved micro-hardness, also it provide slightly superior tensile, flexural and inter-laminar shear strengths than those of the neat epoxy. This study reveals that silicon carbide possesses good filler characteristics as it improves the sliding wear resistance of the polymeric resin. Dry sliding wear characteristics of these composites have been gainfully analysed using a design-of-experiment approach based on Taguchi method. The analysis of experimental results shows that factors like filler content, sliding velocity and normal load, in this sequence, are identified as the significant factors affecting the specific wear rate of the composites under investigation. The silicon carbide-epoxy composites fabricated and experimented upon in this investigation are found to have adequate potential for a wide variety of applications particularly in wear prone environment. When wear is not the predominant degrading factor, epoxy without silicon carbide can be recommended. However, the weight fraction of filler in the composite is to be decided from the view point of required strength. If the place of use is hostile with sliding wear situations, then silicon carbide epoxy composites are to be preferred due to their fairly good wear resistance. Use of these composites may be suggested in applications like engineering structures in dusty environment and low cost building materials in desert.
STUDY OF STRENGTH PROPERTIES OF POLYESTER FIBRE REINFORCED CONCRETEJournal For Research
Fiber Reinforced Concrete" is relatively a new construction material developed through extensive research and development work during the last two decades. Fiber Reinforced Concrete (FRC) is defined as composite material which consists of conventional concrete reinforced by randomly dispersed short length fibers of specific geometry, made of steel, synthetic (polymeric) or natural fibers. Plain cement concrete has very low tensile strength and causes formation of micro cracks in stressed and unstressed states of concrete. Also, it has a low strain at fracture and brittleness with less ductility especially in case of High Performance Concrete. Fiber Reinforced Concrete is the answer to modify these properties of Plain Concrete. The recent development of Secondary reinforcement in Concrete in various fields has provided a strong technical base for improving the quality of the material. To overcome the deficiencies fibers are used as secondary reinforcement. FRC is Portland cement concrete reinforced with more or less randomly distributed fibers. The choice of fibers varies from synthetic organic materials such as polypropylene or carbon, synthetic inorganic such as steel or polyster, natural organic such as cellulose or sisal to natural inorganic asbestos. The interaction between the fiber and concrete matrix is the fundamental property that affects the performance of a cement based fiber composite materials. An understanding of this interaction is needed for forecasting the fiber contribution and for predicting the behavior of such composites. In present investigation concrete with addition of polyester fiber Recron 3s at various at dosages of 0.25%, 0.50%, 0.75% and 1.00% by weight of cement in the mix design is studied to find the optimum dosage of Polyster fiber for concrete.
Abstract In the last decades the composites have been widely used in the construction, automobile and aerospace industries. Among them,
Natural fiber composites are emerging as low cost, lightweight and superior alternatives to synthetic fiber composites. This study
related to the development of bio-degradable composites using Epoxy resin and Sisal/Jute fibers. The fibers are chemically
treated at different percentages of NaOH i.e.,3%, 6% and 9%. Tensile and flexural strength of the composites were determined
using UTM. The natural frequencies of the cantilever composite beam were determined analytically using Euler’s theory and
numerically using Ansys 15.0. From the results, the results agree close to each other.
Keywords: Sisal Fiber, Jute Fiber, Alkali Treatment, Modal Analysis.
Hybrid polymer composites are the materials made by combining two or more
different type of fibers in a matrix. Hybrid polymer composite material offers the
designer to obtain the required properties in a controlled considerable extent by the
choice of fibers and matrix. The properties are tailored in the material by selecting
different kinds of fiber incorporated in the same resin matrix. They offer wide range of
properties that cannot be obtained with a single type of reinforcement. Due to its high
specific strengths, high specific modulus, low densities, light weight etc. based on its
applications. Presently they are playing a vital role in aerospace, defence, transport,
sport applications. Worldwide researches are keenly interested in finding out their
behavior in real life exposed to various environmental conditions, variety of loads etc.
In this paper, We fabricated carbon, e-glass and hybrid composites by using hand
layup technique in uni-directional orientation with epoxy as a matrix material and
conducted various tests such as tensile, compression on Universal Testing Machine
(UTM) and hardness. The results are validated with FEA and observed that Al-6061-
T6 which is used in manufacturing of military aircraft landing mats, truck bodies and
frames etc. has a tensile strength of about 310.25Mpa.The tensile strength of hybrid
fiber is 341Mpa which is higher than Al 6061-T6. We have compared the
experimental results with ansys results and found that the experimental values are
very close to the ansys results. But when compared within the fibers carbon fiber
exhibited more strength when compared to other fibers
Indonesia is one of the countries that has a very high seismic intensity. To meet
the standardization of the building design, several studies were conducted, including
the use of base isolation in residential buildings. The base isolator consists of several
layers of rubber and steel or lamination fibers which function to increase the vertical
stiffness of the isolator. Some has managed to use lamination fiber to make isolator
costs cheaper. This research uses fiberglass type net and woven roving types WR4
and WR6. Fiberglass is modeled according to the ASTM standard dogbone.
Fiberglass is tested as a standard matrix and is a composite. As a composite, the first
type is combined with 2504H Eternal resins and mepoxe catalyst, and second with
adhesive lord chemlok. The effect of curing on a temperature of 150 °C was observed
according to the conditions of making Low-Cost Rubber Base Isolation (LCRBI) on
the printing machine.
The result, fiberglass type Net matrix has a higher tensile strength compared to
other materials. For fiberglass net matrix composite has increased tensile strength in
the oven for 1 hour and returns to the oven for 2 hours at 150 °C. While the
composites of the WR4 and WR6 matrix materials have tensile strengths below 500
MPa and have a relatively small increase and decrease in value. Net type fiberglass is
suitable to be used as reinforcement on low-cost rubber base isolation for residential
areas, where with a small service load from the house it is needed a base isolator that
is not too stiff (optimal elastic). In addition, the fiberglass type net has a hollow
shape, allowing the layer between the rubbers to be more perfect for perfect
attachment
SANDWICH DESIGN MODEL FOR ALUMINUM AND KENAF-POLYESTER COMPOSITEIAEME Publication
This paper presents the design and analysis of the sandwich model for casted
metal-natural fiber composite. The objective of this research is to analyze the
sandwich model of natural fiber composite to be introduced in metal matrix alloys for
engineering application purposes. The sandwich model is the hybrid material
combined with layers aluminum LM6 and kenaf composite laminated. Overall
thickness for each design is 35mm. For the sandwich design, each layer of LM6 is
10mm thickness and each layer of kenaf-polyester composites is 15mm to make it 3
layers with 35mm thickness. The dimensions for both models are referring based on
the requirement of ASTM C393, Standard Test Method for Flexural Properties of
Sandwich Construction. Based on the simulation results, it is feasible to use the
sandwich model of LM6 with kenaf-polyester composite. In addition, this simulation
result strongly supports the potential for this hybrid laminate of LM6 and kenafpolyester
composite as a substitute for solid LM6, reducing the usage of LM6
substance and introducing natural fiber element into engineering application.
Influence of Carbon & Glass Fiber Reinforcements on Flexural Strength of Epox...IJERA Editor
Hybrid composite materials are more attracted by the engineers because of their properties like stiffness and high specific strength which leads to the potential application in the area of aerospace, marine and automobile sectors. In the present investigation, the flexural strength and flexural modulus of carbon and glass fibers reinforced epoxy hybrid composites were studied. The vacuum bagging technique was adopted for the fabrication of polymer hybrid composite materials. The hardness, flexural strength and flexural modulus of the hybrid composites were determined as per ASTM standards. The hardness, flexural strength and flexural modulus were improved as the fiber reinforcement contents increased in the epoxy matrix material.
Study on Effect of Thickness and Fibre Orientation on a Tensile and Flexural ...IJERA Editor
This project presents the study of tensile, flexural & moisture absorption properties of composites made from S-glass, Carbon and E-glass fibre. The specimens are prepared using hand lay-up techniques as per ASTM standard for different thickness 2mm and 3mm and fibre orientation of 30º, 45º and 60º, where an attempt is made to study the properties of composite materials by composing the different materials together to obtain the desired properties by increasing the thickness and fibre orientation. By the variation of thickness tensile strength of hybrid composite is observed for each thickness and is compared with the finite element analysis results. The test ready specimens were subjected to tensile and flexural loads on UTM. This research indicates that tensile strength is mainly dependent on the fiber orientation & thickness of laminated polymer composites. The moisture absorption increases with the fibre, filler content and duration of immersion in water.
Composites are engineered materials made from two or more constituents with different physical or chemical
properties, which remain separate and distinct within the finished structure. A fiber is a material, which is made into
a long filament with diameter generally in the order of 10 microns. The aspect ratio of length to diameter can be
ranging from thousands to infinity in continuous fibers. Increasing worldwide environmental awareness is
encouraging scientific research into the development of cheaper, more environmentally friendly and more
sustainable construction and packing materials. For environment concern on synthetic fiber (such as glass, carbon,
ceramic gibers etc) natural fibers (such as flax, hemp, jute, kenai) etc are widely used. Industrial hemp fiber is one
of the strongest of the natural fibers available and possesses benefits such as low cost and low production energy
requirements. The primary objective of this research is to fabricate the natural fiber composites with suitable
processing/manufacturing methods and to examine the mechanical properties when subjected to Tension, Bending
and to compare & contrast the results with the available literature. In this research work, hemp fiber reinforced
Epoxy matrix composites have been developed by hand layup method with varying process parameters, such as
coupling agent(with and without compatibilizers) and different fiber percentages (10%,20% and 30% by weight).
The developed composites were then characterized by tensile test and flexural testing. Results show that the tensile
strength and flexural properties increases with the increase in fiber percentage. However after a certain percentage
the tensile strength decreases again. Compared to untreated hemp fiber, no significant changes in the tensile strength
have been observed for treated hemp fiber reinforcement. The flexural strength / modulus of the composite were
higher compared to pure epoxy for all filler/fiber loadings.
Effect of fibers on Hybrid Matrix CompositesIJERA Editor
Frictional co-efficient, impact quality; dielectric quality and compound resistance examination of bamboo/glass strands strengthened epoxy half breed composites were considered. Two distinctive crossover composites, for example, treated and untreated bamboo filaments were manufactured and impact of soluble base treatment of the bamboo strands on these properties were additionally concentrated on. It was watched that, effect quality and frictional co-proficient properties of the half and half composites increment with expansion in glass fiber content. These properties observed to be higher when salt treated bamboo filaments were utilized as a part of the half breed composites. It is watched that, concoction resistance was fundamentally increments for all chemicals with the exception of carbon tetrachloride. The disposal of nebulous hemi-cellulose with salt treatment prompting higher crystallinity of the bamboo filaments with antacid treatment may in charge of these perceptions. The impact of salt treatment on the holding between glass/bamboo composites was additionally concentrated on. Checking electron magnifying lens (SEM) were additionally directed on the cross segments of broke surfaces with a specific end goal to rate the execution crossover composites were likewise conferred bear natural products
Shellfish shell as a Bio-filler: Preparation, characterization and its effec...theijes
The International Journal of Engineering & Science is aimed at providing a platform for researchers, engineers, scientists, or educators to publish their original research results, to exchange new ideas, to disseminate information in innovative designs, engineering experiences and technological skills. It is also the Journal's objective to promote engineering and technology education. All papers submitted to the Journal will be blind peer-reviewed. Only original articles will be published.
Effect of Temperature on Wear Rate of Si-Epoxy- Eglass Polymer composite Mate...IDES Editor
With the increase use of polymer composites in
erosive work environment, it has become extremely important
to investigate their erosion characteristics. The hybrid
composite consisting of a Epoxy resin reinforced with Eglass
fiber and Si particles was developed. The effect of temperature
on wear rate applied to Si – Epoxy – Eglass polymer composite
has been studied. It has been found that the wear rate increases
as the temperature of carrier media (air) is increased.
Temperature of carrier media is one of the significant factor
influencing the erosion wear. The results were compared with
the plain epoxy composite material. Micrographs of eroded
surface are also presented to study the wear rate and Wear
behavior of composite.
Mechanical Behavior of Polymer Matrix Composite Materials Reinforced With Cer...IJCMESJOURNAL
In the present work, the mechanical properties of PMC specimens with various types of ceramic reinforcements were investigated. The PMC specimens were reinforced with glass, carbon fibers and Kevlar. The effect of the % content of the reinforcement material in the matrix and the effect of the applied strain velocity (2,4,6 mm/min) were found to affect the mechanical properties of the specimens.
Exploratory study on the use of crushed cockle shell as partial sand replacem...IJRES Journal
The increasing demand for natural river sand supply for the use in construction industry along
with the issue of environmental problem posed by the dumping of cockle shell, a by-product from cockle
business have initiated research towards producing a more environmental friendly concrete. This research
explores the potential use of cockle shell as partial sand replacement in concrete production. Cockle shell used
in this experimental work were crushed to smaller size almost similar to sand before mixed in concrete. A total
of six concrete mixtures were prepared with varying the percentages of cockle shell viz. 0%, 5%, 10%, 15%,
20% and 25%. All the specimens were subjected to continuous water curing. The compressive strength test was
conducted at 28 days in accordance to BS EN 12390. Finding shows that integration of suitable content of
crushed cockle shell of 10% as partial sand replacement able to enhance the compressive strength of concrete.
Adopting crushed cockle shell as partial sand replacement in concrete would reduce natural river sand
consumption as well as reducing the amount of cockle shell disposed as waste.
Congenital Malaria: Correlation of Umbilical Cord Plasmodium falciparum Paras...IJRES Journal
The vertical (trans-placental) transmission of the parasite Plasmodium falciparum from
pregnant mother to fetus during gestational period was investigated in a clinical research involving 43 full term
pregnant women in selected Hospitals in Jimeta Yola, Adamawa State Nigeria. During the observational study,
parasitemia was determined by light microscopic examination of umbilical and maternal peripheral blood film
for the presence of the trophozoites of Plasmodium falciparum. Correlational analysis was then carried on the
result obtained at p<0.05.><0.05) was established between maternal peripheral blood and umbilical cord
blood parasitemia with Pearson’s correlation coefficient of 0.762. Thus, in a malaria endemic area like Yola,
Adamawa State, Nigeria, with a stable transmission of parasite, there is a high probability of vertical
transmission of Plasmodium falciparum parasite from mother to fetus during gestation that can be followed by
the presentation of the symptoms of malaria by the newborn and other malaria related complications. Families
are advised to consistently sleep under appropriately treated insecticide mosquito net to avoid mosquito bite and
subsequent infestation.
Review: Nonlinear Techniques for Analysis of Heart Rate VariabilityIJRES Journal
Heart rate variability (HRV) is a measure of the balance between sympathetic mediators of heart
rate that is the effect of epinephrine and norepinephrine released from sympathetic nerve fibres acting on the
sino-atrial and atrio-ventricular nodes which increase the rate of cardiac contraction and facilitate conduction at
the atrio-ventricular node and parasympathetic mediators of heart rate that is the influence of acetylcholine
released by the parasympathetic nerve fibres acting on the sino-atrial and atrio-ventricular nodes leading to a
decrease in the heart rate and a slowing of conduction at the atrio-ventricular node. Sympathetic mediators
appear to exert their influence over longer time periods and are reflected in the low frequency power(LFP) of
the HRV spectrum (between 0.04Hz and 0.15 Hz).Vagal mediators exert their influence more quickly on the
heart and principally affect the high frequency power (HFP) of the HRV spectrum (between 0.15Hz and 0.4
Hz). Thus at any point in time the LFP:HFP ratio is a proxy for the sympatho- vagal balance. Thus HRV is a
valuable tool to investigate the sympathetic and parasympathetic function of the autonomic nervous system.
Study of HRV enhance our understanding of physiological phenomenon, the actions of medications and disease
mechanisms but large scale prospective studies are needed to determine the sensitivity, specificity and predictive
values of heart rate variability regarding death or morbidity in cardiac and non-cardiac patients. This paper
presents the linear and nonlinear to analysis the HRV.
Dynamic Modeling for Gas Phase Propylene Copolymerization in a Fluidized Bed ...IJRES Journal
A two-phase model is proposed for describing the dynamics of a fluidized bed reactor used for
polypropylene production. In the proposed model, the fluidized bed is divided into an emulsion and bubble
phase where the flow of gas is considered to be plug flow through the bubbles and perfectly mixed through the
emulsion phase. Similar previous models, consider the reaction in the emulsion phase only. In this work the
contribution of reaction in the bubble phase is considered and its effect on the overall polypropylene production
is investigated the kinetic model is combined with hydrodynamic model in order to develop a comprehensive
model for gas-phase propylene copolymerization reactor. Simulation profiles of the proposed model were
compared with those of well mixed model for the emulsion phase temperature. The simulated temperature
profile showed a lower rate of change compared to the previously reported models due to lower polymerization
rate. Model simulation showed that about 13% of the produced polymer comes from the bubble phase and this
considerable amount of polymerization in the bubbles should not be neglected in any modeling attempt.
Study and evaluation for different types of Sudanese crude oil propertiesIJRES Journal
Sudanese crude oil is regarded as one of the sweet types of crude in the world, Sulphur containing
compounds are un desirable in petroleum because they de activate the catalyst during the refining processes and
are the main source of acid rains and environmental pollution.(Mark Cullen 2001),Since it contains considerable
amount of salts and acids, it negatively impact the production facilities and transportation lines with corrosive
materials. However it suffers other problems in flow properties represented by the high viscosity and high
percentage of wax. Samples were collected after the initial and final treatment at CPF, and tested for
physical and chemical properties.wax content is in the range 23-31 weight % while asphalting content is about
0.1 weight% . Resin content is 13-7 weight % and deposits are 0.01 weight%. The carbon number distribution in
the crude is in the range 7-35 carbon atoms. The pour point vary between 39°C-42°C and the boiling point is in
the range 70 °C - 533 °C.
A Short Report on Different Wavelets and Their StructuresIJRES Journal
This article consists of basics of wavelet analysis required for understanding of and use of wavelet
theory. In this article we briefly discuss about HAAR wavelet transform their space and structures.
A Case Study on Academic Services Application Using Agile Methodology for Mob...IJRES Journal
Recently, Mobile Cloud Computing reveals many modern development areas in the Information
Technology industry. Several software engineering frameworks and methodologies have been developed to
provide solutions for deploying cloud computing resources on mobile application development. Agile
methodology is one of the most commonly used methodologies in the field. This paper presents the MCCAS a
Web and Mobile application that provide feature for the Palestinian higher education/academic institutions. An
Agile methodology was used in the development of the MCCAS but in parallel with emphasis on Cloud
computing resources deployment. Also many related issues is discussed such as how software engineering
modern methodologies (advances) influenced the development process.
Wear Analysis on Cylindrical Cam with Flexible RodIJRES Journal
Firstly, the kinetic equation of spatial cylindrical cam with flexible rod has been established. Then, an
accurate cylindrical cam mechanism model has been established based on the spatial modeling software
Solidworks. The dynamic effect of flexible rod on mechanical system was studied in detail based on the
mechanical system dynamics analytical software Adams, and Archard wear model is used to predict the wear of
the cam. We used Ansys to create finite element model of the cam link, extracted the first five order mode to
export into Adams. The simulation results show that the dynamic characteristics of spatial cylindrical cam
mechanical system with flexible rod is closed to ideal mechanism. During the cam rotate one cycle, the collision
in the linkage with a clearance occurs in some special location, others still keep a continuous contact, and the
prediction of wear loss is smaller than rigid body.
DDOS Attacks-A Stealthy Way of Implementation and DetectionIJRES Journal
Cloud Computing is a new paradigm provides various host service [paas, saas, Iaas over the internet.
According to a self-service,on-demand and pay as you use business model,the customers will obtain the cloud
resources and services.It is a virtual shared service.Cloud Computing has three basic abstraction layers System
layer(Virtual Machine abstraction of a server),Platform layer(A virtualized operating system, database and
webserver of a server and Application layer(It includes Web Applications).Denial of Service attack is an attempt
to make a machine or network resource unavailable to the intended user. In DOS a user or organization is
deprived of the services of a resource they would normally expect to have.A Successful DOS attack is a highly
noticeable event impacting the entire online user base.DOS attack is found by First Mathematical Metrical
Method (Rate Controlling,Timing Window,Worst Case and Pattern Matching)DOS attack not only affect the
Quality of the service and also affect the performance of the server. DDOS attacks are launched from Botnet-A
large Cluster of Connected device(cellphone,pc or router) infected with malware that allow remote control by an
attacker. Intruder using SIPDAS in DDOS to perform attack.SIPDAS attack strategies are detected using Heap
Space Monitoring Algorithm.
An improved fading Kalman filter in the application of BDS dynamic positioningIJRES Journal
Aiming at the poor dynamic performance and low navigation precision of traditional fading
Kalman filter in BDS dynamic positioning, an improved fading Kalman filter based on fading factor vector is
proposed. The fading factor is extended to a fading factor vector, and each element of the vector corresponds to
each state component. Based on the difference between the actual observed quantity and the predicted one, the
value of the vector is changed automatically. The memory length of different channel is changed in real time
according to the dynamic property of the corresponding state component. The actual observation data of BDS is
used to test the algorithm. The experimental results show that compared with the traditional fading Kalman filter
and the method of the third references, the positioning precision of the algorithm is improved by 46.3% and
23.6% respectively.
Positioning Error Analysis and Compensation of Differential Precision WorkbenchIJRES Journal
Positioning error is a widely problem exists in mechanism, the important factors affecting machining
precision. In order to reduce the error caused by positioning problem processing, based on the differential
workbench as the research object, using the method of theoretical analysis and experimental verification, the
analysis of positioning error mechanism and source of complete differential precision workbench error
compensation, improve the accuracy of the device, provides a method for the application of modern machine
tools. table.
Status of Heavy metal pollution in Mithi river: Then and NowIJRES Journal
The Mithi River runs through the heart of suburban Mumbai. Its path of flow has been severely
damaged due to industrialization and urbanization. The quality of water has been deteriorating ever since. The
Municipal and industrial effluents are discharged in unchecked amounts. The municipal discharge comprises
untreated domestic and sewage wastes whereas the industries are majorly discharge chemicals and other toxic
effluents which are responsible in increasing the metal load of the river. In the current study, the water is
analysed for heavy metals- Copper, Cadmium, Chromium, Lead and Nickel. It also includes a brief
understanding on the fluctuations that have occurred in the heavy metal pollution, through the compilation of
studies carried out in the area previously.
The Low-Temperature Radiant Floor Heating System Design and Experimental Stud...IJRES Journal
In order to analyze the temperature distribution of the low-temperature radiant floor heating system
that uses the condensing wall-hung boiler as the heat source, the heating system is designed according to a typical
house facing south in Shanghai. The experiments are carried out to study the effects of the supply water
temperature on the thermal comfort of the system. Eventually, the supply water temperature that makes people in
the room feel more comfortable is obtained. The result shows that in the condition of that the outside temperature
is 8~15℃ and the relative humidity is 30~70%RH, the temperature distribution in the room is from high to low
when the height is from bottom to top. The floor surface temperature is highest, but its uniformity is very poor.
When the heating system reaches the steady state, the air temperature of the room is uniform. When the supply
water temperature is 63℃ The room is relatively comfortable at the above experimental condition.
Experimental study on critical closing pressure of mudstone fractured reservoirsIJRES Journal
In the process of oil and gas exploitation of mudstone-fractured reservoir in Daqing oilfield, the
permeability of fracture is easily affected by the influence of stress change, which is shown by the sensitivity of
the permeability to the stress. With the extension of time mining in the fractured mudstone reservoir, fracture
stress sensitivity is obvious in vast decline of production and great influence on reduced yields. In order to
reasonably determine the way of developing method, working system and the exploitation rate of the reservoir,
correspondingly protecting reservoir productivity, improve ultimate recovery. On the basis of the previous
research on the stress sensitivity of fractured mudstone, this essay studied the critical closing pressure of the
simulated underground fractured mudstone under the laboratory condition.
Correlation Analysis of Tool Wear and Cutting Sound SignalIJRES Journal
With the classic signal analysis and processing method, the cutting of the audio signal in time
domain and frequency domain analysis. We reached the following conclusions: in the time domain analysis,
cutting audio signals mean and the variance associated with tool wear state change occurred did not change
significantly, and tool wear is not high degree of correlation, and the mean-square value of the audio signal
changes in the size and tool wear the state has a good relationship.
Reduce Resources for Privacy in Mobile Cloud Computing Using Blowfish and DSA...IJRES Journal
Mobile cloud computing in light of the increasing popularity among users of mobile smart
technology which is the next indispensable that enables users to take advantage of the storage cloud computing
services. However, mobile cloud computing, the migration of information on the cloud is reliable their privacy
and security issues. Moreover, mobile cloud computing has limitations in resources such as power energy,
processor, Memory and storage. In this paper, we propose a solution to the problem of privacy with saving and
reducing resources power energy, processor and Memory. This is done through data encryption in the mobile
cloud computing by symmetric algorithm and sent to the private cloud and then the data is encrypted again and
sent to the public cloud through Asymmetric algorithm. The experimental results showed after a comparison
between encryption algorithms less time and less time to decryption are as follows: Blowfish algorithm for
symmetric and the DSA algorithm for Asymmetric. The analysis results showed a significant improvement in
reducing the resources in the period of time and power energy consumption and processor.
Resistance of Dryland Rice to Stem Borer (Scirpophaga incertulas Wlk.) Using ...IJRES Journal
Rice stem borer is one of the important pests that attack plants so as to reduce production. One way
to control pests is to use organic fertilizers that make the plant stronger and healthier. This study was conducted
to determine the effects of organic fertilizers with various doses without the use of pesticides in controlling stem
borer, Scirpophaga incertulas. Methods using split-split plot design which consists of two levels of the whole
plot factor (solid and liquid organic fertilizers), two levels of the subplot factor (conventional and industry,
Tiens and Mitraflora), and four levels of the sub-subplot factor of conventional and industry (5, 10, 15, 20
tonnes/ha), and one level of the sub-subplot factor of Tiens and Mitraflora (each 2 ml/l). Based on the results
Statistical analysis there were no significant differences among treatments and this shows that the use of organic
fertilizers that only a dose of 5 tonnes/ha is sufficient available nutrients that make plants more robust and
resistant to control stem borer, besides that can reduce production costs and friendly to the environment when
compared with using inorganic fertilizers.
A novel high-precision curvature-compensated CMOS bandgap reference without u...IJRES Journal
A novel high-precision curvature-compensated bandgap reference (BGR) without using op-amp
is presented in this paper. It is based on second-order curvature correction principle, which is a weighted sum of
two voltage curves which have opposite curvature characteristic. One voltage curve is achieved by first-order
curvature-compensated bandgap reference (FCBGR) without using op-amp and the other found by using W
function is achieved by utilizing a positive temperature coefficient (TC) exponential current and a linear
negative TC current to flow a linear resistor. The exponential current is gained by using anegative TC voltage to
control a MOSFET in sub-threshold region. In the temperature ranging from -40℃ to 125℃, experimental
results implemented with SMIC 0.18μm CMOS process demonstrate that the presented BGR can achieve a TC
as low as 2.2 ppm/℃ and power-supply rejection ratio(PSRR)is -69 dB without any filtering capacitor at 2.0 V.
While the range of the supply voltage is from 1.7 to 3.0 V, the output voltage line regulation is about1 mV/ V
and the maximum TC is 3.4 ppm/℃.
Structural aspect on carbon dioxide capture in nanotubesIJRES Journal
In this work we reported the carbon dioxide adsorption (CO2) in six different nanostructures in order
to investigate the capturing capacity of the materials at nanoscale. Here we have considered the three different
nanotubes including zinc oxide nanotube (ZnONT), silicon carbide nanotube (SiCNT) and single walled carbon
nanotube (SWCNT). Three different chiralities such as zigzag (9,0), armchair (5,5) and chiral (6,4) having
approximately same diameter are analyzed. The adsorption binding energy values under various cases are
estimated with density functional theory (DFT). We observed CO2 molecule chemisorbed on ZnONT and
SiCNT’s whereas the physisorption is predominant in CNT. To investigate the structural aspect, the tubes with
defects are studied and compared with defect free tubes. We have also analyzed the electrical properties of tubes
from HOMO, LUMO energies. Our results reveal the defected structure enhance the CO2 capture and is
predicted to be a potential candidate for environmental applications.
Thesummaryabout fuzzy control parameters selected based on brake driver inten...IJRES Journal
In this paper, the brake driving intention identification parameters based on the fuzzy control are
summarized and analyzed, the necessary parameters based on the fuzzy control of the brake driving intention
recognition are found out, and I pointed out the commonly corrupt parameters, and through the relevant
parameters , I establish the corresponding driving intention model.
Welcome to WIPAC Monthly the magazine brought to you by the LinkedIn Group Water Industry Process Automation & Control.
In this month's edition, along with this month's industry news to celebrate the 13 years since the group was created we have articles including
A case study of the used of Advanced Process Control at the Wastewater Treatment works at Lleida in Spain
A look back on an article on smart wastewater networks in order to see how the industry has measured up in the interim around the adoption of Digital Transformation in the Water Industry.
Saudi Arabia stands as a titan in the global energy landscape, renowned for its abundant oil and gas resources. It's the largest exporter of petroleum and holds some of the world's most significant reserves. Let's delve into the top 10 oil and gas projects shaping Saudi Arabia's energy future in 2024.
Explore the innovative world of trenchless pipe repair with our comprehensive guide, "The Benefits and Techniques of Trenchless Pipe Repair." This document delves into the modern methods of repairing underground pipes without the need for extensive excavation, highlighting the numerous advantages and the latest techniques used in the industry.
Learn about the cost savings, reduced environmental impact, and minimal disruption associated with trenchless technology. Discover detailed explanations of popular techniques such as pipe bursting, cured-in-place pipe (CIPP) lining, and directional drilling. Understand how these methods can be applied to various types of infrastructure, from residential plumbing to large-scale municipal systems.
Ideal for homeowners, contractors, engineers, and anyone interested in modern plumbing solutions, this guide provides valuable insights into why trenchless pipe repair is becoming the preferred choice for pipe rehabilitation. Stay informed about the latest advancements and best practices in the field.
Student information management system project report ii.pdfKamal Acharya
Our project explains about the student management. This project mainly explains the various actions related to student details. This project shows some ease in adding, editing and deleting the student details. It also provides a less time consuming process for viewing, adding, editing and deleting the marks of the students.
Hybrid optimization of pumped hydro system and solar- Engr. Abdul-Azeez.pdffxintegritypublishin
Advancements in technology unveil a myriad of electrical and electronic breakthroughs geared towards efficiently harnessing limited resources to meet human energy demands. The optimization of hybrid solar PV panels and pumped hydro energy supply systems plays a pivotal role in utilizing natural resources effectively. This initiative not only benefits humanity but also fosters environmental sustainability. The study investigated the design optimization of these hybrid systems, focusing on understanding solar radiation patterns, identifying geographical influences on solar radiation, formulating a mathematical model for system optimization, and determining the optimal configuration of PV panels and pumped hydro storage. Through a comparative analysis approach and eight weeks of data collection, the study addressed key research questions related to solar radiation patterns and optimal system design. The findings highlighted regions with heightened solar radiation levels, showcasing substantial potential for power generation and emphasizing the system's efficiency. Optimizing system design significantly boosted power generation, promoted renewable energy utilization, and enhanced energy storage capacity. The study underscored the benefits of optimizing hybrid solar PV panels and pumped hydro energy supply systems for sustainable energy usage. Optimizing the design of solar PV panels and pumped hydro energy supply systems as examined across diverse climatic conditions in a developing country, not only enhances power generation but also improves the integration of renewable energy sources and boosts energy storage capacities, particularly beneficial for less economically prosperous regions. Additionally, the study provides valuable insights for advancing energy research in economically viable areas. Recommendations included conducting site-specific assessments, utilizing advanced modeling tools, implementing regular maintenance protocols, and enhancing communication among system components.
Water scarcity is the lack of fresh water resources to meet the standard water demand. There are two type of water scarcity. One is physical. The other is economic water scarcity.
About
Indigenized remote control interface card suitable for MAFI system CCR equipment. Compatible for IDM8000 CCR. Backplane mounted serial and TCP/Ethernet communication module for CCR remote access. IDM 8000 CCR remote control on serial and TCP protocol.
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Technical Specifications
Indigenized remote control interface card suitable for MAFI system CCR equipment. Compatible for IDM8000 CCR. Backplane mounted serial and TCP/Ethernet communication module for CCR remote access. IDM 8000 CCR remote control on serial and TCP protocol.
Key Features
Indigenized remote control interface card suitable for MAFI system CCR equipment. Compatible for IDM8000 CCR. Backplane mounted serial and TCP/Ethernet communication module for CCR remote access. IDM 8000 CCR remote control on serial and TCP protocol.
• Remote control: Parallel or serial interface
• Compatible with MAFI CCR system
• Copatiable with IDM8000 CCR
• Compatible with Backplane mount serial communication.
• Compatible with commercial and Defence aviation CCR system.
• Remote control system for accessing CCR and allied system over serial or TCP.
• Indigenized local Support/presence in India.
Application
• Remote control: Parallel or serial interface.
• Compatible with MAFI CCR system.
• Compatible with IDM8000 CCR.
• Compatible with Backplane mount serial communication.
• Compatible with commercial and Defence aviation CCR system.
• Remote control system for accessing CCR and allied system over serial or TCP.
• Indigenized local Support/presence in India.
• Easy in configuration using DIP switches.
Experimental Evaluation of effect of filler on tensile behaviour of E-glass/epoxy composites
1. International Journal of Research in Engineering and Science (IJRES)
ISSN (Online): 2320-9364, ISSN (Print): 2320-9356
www.ijres.org Volume 3 Issue 2 ǁ Feb. 2015 ǁ PP.40-44
www.ijres.org 40 | Page
Experimental Evaluation of effect of filler on tensile behaviour of
E-glass/epoxy composites
Lokesh K.S1
, Chetan.A2
Assistant Professor1
, Department of Mechanical Engineering, Srinivas Institute of Technology, Volachil,
Mangalore. Karnataka-574143
PG Student2
, Department of Mechanical Engineering, KVG College of Engineering, Sullia, Manglore.
Abstract-The present work describes the processing and tensile characterization of polymer matrix
composites (PMC). Two types of E-glass laminates namely woven and chopped are used as a reinforcing
materials and epoxy resin constitutes matrix system. Several works has been carried out to prove that strength
of glass fibre composites progressively increased with adding fillers. Keeping this in mind the present work
successeded in using wollastonite as a filler material, tensile test samples from both woven and chopped type
were prepared and tests are conducted as per ASTM standards and corresponding results are tabulated and
discussed. The present work also highlights the tensile strength for both woven and chopped laminates were
compared. It is observed that use of wollastonite filler influences greatly on tensile properties of polymer matrix
composites. And it is also cleared that woven laminates shows higher resistance to tensile loading as compared
to chopped laminates.
Keywords: wollastonite, filler composites, polymer composites, strength of composite.
I. INTRODUCTION
Composites are combination of two materials in which one of the materials, Composite materials are
formed from two or more materials producing properties that could not be obtained from any one material. One
of the constituent materials acts as the matrix and at least one other constituent material act as the reinforcement
in the composites. Composite materials emerge as a promising alternative to correct the deficiencies caused by
steel reinforcement in concrete structures [1-5]. Composite materials have replaced metals in various
engineering applications owing to their numerous advantages, like high strength/weight ratio, low cost, low
density, better stealth properties, etc. Due to these advantages, there is an increasing demand for use of these
materials in defense applications like naval ships, warplanes, armor vehicles and re-entry vehicles. In addition to
this composites find their applications in automotive and aerospace industries such as bushes, gears, seals, cams,
shafts etc. The most common types of reinforcement used in polymeric matrix composites (PMC) are strong and
brittle fibres incorporated into a soft and ductile polymeric matrix. In this case, PMC are referred to as fibre
reinforced plastics (FRP’s). Composites in civil engineering applications have been steadily increasing. This is
primarily due to the ever-increasing demand for materials, which are characterized by high strength-to-weight
and stiffness-to-weight ratios at an effective installed or life cycle cost. The advantageous properties of fibre
reinforced polymer (FRP) includes, high strength-to-weight ratio, and corrosion and fatigue resistance create an
interest in engineers; the most economical choice depends on the cost of material, production cost, life cycle
cost, and material properties. Weight savings and performance, naturally, play a major factor in the choice of
materials. A combination of good mechanical properties and relatively low cost makes glass fibre attractive
choice for the marine structures. The glass fabric chosen was woven roving E-glass supplied by Fibre Glass
Industries’ (FGI) and designated as per FGI 1854 and glass fibres had Super 317 sizing for ease of handling,
fast wet out, and compatibility with a number of resins including vinylester. The glass fibres reduce the quantity
of water absorbable material and thus, the water sorption of FRC should be less compared to that of the matrix
polymer. In-plane shear properties of both carbon and glass fibre composites were comparable and inter laminar
shear properties of E-glass composites were observed to be better than the carbon composite because of the
better nesting between the E-glass fabric layers.
II. FABRICATION OF SPECIMENS
The main materials used are glass fiber with density of 360GSM and 200GSM for both woven and chopped
type respectively, Epoxy resin (araldite GY250) and hardner (teta),wollastonite powder as a filler material.
Glass fiber is a material consisting of numerous extremely fine fibers of glass. It is most commonly used as
reinforcement material because of is exceptional properties. Although not as strong or as rigid as carbon fiber, it
is much cheaper and significantly less brittle. Here type of glass fibre used is E-glass, The main compositions of
E-glass (electrically conductors) are the oxides of silica, aluminium and calcium. The glass fiber is also regarded
2. Experimental Evaluation of effect of filler on tensile behaviour of E-glass/epoxy composites
www.ijres.org 41 | Page
as calcium alumino borosilicate glass. Epoxy is the cured end product of epoxy resins, as well as a colloquial
name for the epoxide functional group. Epoxy resin is relatively low molecular weight pre polymers capable of
being processed under a variety of conditions. In this work a fine powder of calcium ino silicate mineral called
wollastonite is used as a filler material. wollastonite sample collected is as shown in Fig.1. The die arrangement
for preparing composites and pressing arrangements are shown in Fig 2.
Fig.1: wollastonite sample
Fig.2: Die arrangement
As per the calculations 16 no. of layers of 250x250 sized glass fiber was cut. The required amount of Epoxy
resin was weighed. Calculated amount of powdered filler was added. The different percentages of wollastonite
used are: 1%, 3%, 5%, 7%. The resin hardner proportion ratio of 10:1 was mixed and thoroughly stirred. The
laminate surfaces will be cleaned thoroughly to make sure that they were free from oil, dirt. etc., this process
could be done before bonding takes place between the laminates at room temperature and pressure. By using
Hand layup technique the glass fiber along with resin was compressed and cured in the die for 24hours. The
constant thicknesses of 4 mm are maintained for all specimens prepared. The fabricated and cured samples of
both woven and chopped specimens are shown in fig 3 and 4 respectively.
Fig.3: woven sample Fig.4: chopped sample.
III. EXPERIMENTAL METHOD
The tensile test is generally performed on flat specimens. The commonly used specimens for tensile test are
the dog-bone type and the straight side type with 14 end tabs. The tensile experiments were performed
according to ASTM standard D3039 [6-12th
in phase1 rep]. The tensile test specimens of 200*15 dimensions
were prepared after resizing of the samples from 250*250mm dimensions in which it is derived from cured
glass fibre epoxy reinforced laminates of both woven and chopped strand mats. The grip length at both ends of
the specimens for tensile test is allowed to ensure proper breaking of the specimens. A universal testing
machine was used for tensile test. The top end of the specimen was fixed by the grips on the top cross-head of
the machine while the bottom end was not fixed before applying the load. A slotted steel plate was placed
between the top of the bottom anchor and the bottom of the middle cross-head. When the specimen was loaded,
3. Experimental Evaluation of effect of filler on tensile behaviour of E-glass/epoxy composites
www.ijres.org 42 | Page
this plate engaged the bottom anchor: The load was applied at a constant speed until the failure of the specimen.
The tensile test specimens prepared in the order of filler percentage (i.e 1%,3%,5%,7%) for both woven and
chopped type is as shown in fig.5 and fig.6 respectively.
Fig 5: UTM MACHINE (for tensile test)
Fig.5: Test Samples of woven fibre with different filler percentage.
Fig.6: Test Samples of chopped fibre with different filler percentage.
IV. RESULTS & DISCUSSIONS
The fabrication of woven and chopped test samples with different percentage of filler such as
1%,3%,5%,7% are carried out successfully. In order to predict tensile parameters such as ultimate tensile
strength, peak load and modulus of tested specimens, simple digital tensile test System is employed. Tensile
parameters for fabricated specimens were tested as according to ASTM standards and the results are tabulated.
Graph 1 and 2 describes typical tensile load vs. deflection of both woven and chopped specimens of having 1%
filler (only 2 sample graphs have been indicated). Curves for both specimens show linear behavior until failure.
Curves show inflection at the point of yielding in both cases; tensile strength and tensile stiffness have been
recorded. It can be observed from table 1, the effect of filler addition which directly influence on tensile strength
of glass fibre composites, for woven fabric laminates, addition of 1% wollastonite material shows that the
material is able to withstand maximum load as well as it bears higher values of ultimate tensile strength as
compared to the unfilled(without filler) tested samples, this behaviour is continued for the samples containing
3% filler which shows better performance compared to unfilled samples but it lags behind the 1% filled
samples in showing greater tensile test results, further increase in adding filler percentage shows least tensile
4. Experimental Evaluation of effect of filler on tensile behaviour of E-glass/epoxy composites
www.ijres.org 43 | Page
test results. In case of chopped samples, it is observed that effect of filler content influences greatly on tensile
parameters, it is cleared that samples congaing higher percentage of filler(i.e 7%)shows maximum resistance to
bending load and also bears maximum tensile strength. However, the increase in strength and stiffness in case of
woven seems to be more significant as compared to chopped fibers. Finally we observed that, glass/epoxy
(woven) with 1% filler have higher strength, stiffness and load carrying capacity than the rest of the samples.
Hence, it is suggested that woven fiber is preferred for designing of structures like which is more beneficial for
sectors like, Aerospace, auto motives, marine, space etc.
Table 1: Indicates the details of breaking load, ultimate tensile strength.
Fig.7: Failure of test specimens under tensile loading (both woven and chopped type with 3% filler)
Graph 1: shows load v/s length for woven(1% filler)
Details Woven sample with different filler
in (%)
Chopped sample with different filler
in(%)
0 1 3 5 7 0 1 3 5 7
Max load
(N)
2879
5.666
31215
.234
292
29.
474
28742
.28
269
85.
387
155
18.
871
1650
8.70
9
167
38.
948
16916.0
95
17447.81
1
UTS in
N/mm2
479.9
25
520.2
54
487
.15
5
479.0
42
449
.75
9
258
.65
260.
427
262
.31
9
275.605 290.798
Max.
displcmnt(
mm)
16.35 16.10 17.
12
14.15 14.
95
12.
01
12.5 12.
25
13.15 12.15
5. Experimental Evaluation of effect of filler on tensile behaviour of E-glass/epoxy composites
www.ijres.org 44 | Page
Graph 2: shows load v/s length for chopped(1% filler).
V. CONCLUSION
Tensile tests were performed on Glass fiber (360 GSM woven & 200 GSM chopped) composite specimens.
The load-deflection curve was evaluated. Two types of laminates were tested varying filler percentages. The
main outcome of the present investigation are as follows:
1. Effect of filler content in glass fibre composites seems to play significant role in assessing material
behaviour under tensile loading conditions.
2. Experiments were conducted on Glass/Epoxy laminate composite specimens with varying fiber orientation
to evaluate the tensile properties.
3. It is observed from the result that glass/Epoxy with woven fibre with 1% filler yields’ high strength when
compare to the remaining alternatives.
4. It is observed from the results, compare to chopped fibre woven glass fibre/Epoxy composites yields high
strength.
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