The document discusses a study on the impact resistance performance of composite materials reinforced with Arenga Pinnata fibre. Composites are made of two materials with different properties, such as fibre and resin. Arenga Pinnata fibre was chosen as the reinforcement due to its availability in tropical regions like Malaysia and its promising tensile strength when treated with water. Samples with varying fibre content were fabricated and tested to analyze their flexural strength and modulus properties. The results show that strength and stiffness increase with higher fibre content.
The document summarizes a masters thesis defense on the effects of concrete mixture properties on aggregate interlock. The research objectives were to establish relationships between concrete properties and load transfer efficiency and aggregate interlock, and investigate how properties affect fracture parameters and aggregate interlock. Testing included measuring fracture energy, flexural strength, and volumetric surface texture of concrete mixtures. Statistical models found volumetric surface texture was affected by aggregate top size, LA abrasion value, and water-cement ratio.
This PhD thesis characterizes welded transverse micro-fasteners for joining dissimilar metal and composite materials. Cold metal transfer welding was used to deposit micro-fasteners onto metal substrates. Single lap shear testing of metal-composite joints incorporating these micro-fasteners showed they can efficiently transfer load through adhesive while maintaining damage tolerance. Future work includes quantifying properties like porosity and fiber undulation effects around the welded micro-fasteners.
The document promotes Motorola's Service from the Start comprehensive coverage plan, which provides extended warranty protection and repairs accidental damage to Motorola mobile computers, scanners, and wireless products. It protects against the costs of repairs from normal wear and tear, accidental breakage, and display/component damage. The plans range in annual cost from €15.79 to €7.90 depending on the device and contract length, working out to €1.31-€0.66 per month. This comprehensive coverage sets a new standard by protecting customers' Motorola device investments for a low cost.
Battelle has developed three technologies to enable injection of highly viscous protein formulations:
1) A chemical reaction replaces springs in autoinjectors, providing controlled injection without strain in a compact size. It injected 75 cP silicone oil in under 10 seconds.
2) Core annular flow reduces apparent viscosity by flowing a low viscosity fluid along the outside of the needle, cutting injection time for an 85 cP glycerol solution from 180 to 6 seconds.
3) Liquid jet injection eliminates needles and injects fluids up to 6000 cP in under 100 milliseconds, 18 times faster than a standard needle.
This document summarizes a presentation on modeling the behavior of bolted joints in fiber reinforced composite laminates. The presentation includes:
1) An overview of factors affecting bolted joint behavior in composites and the need for numerical models to simulate real-world scenarios.
2) Details of the finite element model developed in Abaqus to model a single bolted composite joint, including geometry, materials, meshing, and validation of the linear model.
3) Implementation of a user subroutine to enable progressive failure analysis by degrading properties after different failure modes are reached based on Hashin's failure criteria.
4) Validation of the nonlinear model and subroutine against experimental data on composite plates and
This document discusses the use of cohesive zone modeling to simulate fatigue crack growth and retardation. Cohesive zone models define cohesive stresses around a crack tip that are related to crack opening width. Crack propagation occurs when cohesive stresses reach a failure value. The models can account for material properties through a cohesive law. Finite element implementations use cohesive elements located at crack fronts. The models can simulate crack closure effects, wedge effects, and predict crack growth under various loading conditions like overloads through an unloading-reloading hysteresis. Cohesive theory provides a unified way to model long cracks under constant loading as well as short cracks and overloads.
The document summarizes a student's thesis proposal on fabricating and comparing the mechanical properties of hybrid glass fiber reinforced plastic (GFRP) composites using epoxy resin with and without epoxy modifiers. The objectives are to fabricate GFRP using hand lay-up with epoxy resin and glass fibers with and without titanium dioxide modifier, and test the tensile, flexural, and shear strengths of the materials. Literature on using epoxy modifiers to improve mechanical properties of epoxy/fiber composites and vibration assisted machining of carbon fiber composites is reviewed. The methodology involves fabricating GFRP with and without modifiers, mechanical testing, and comparing results.
Reinforced arches have a wide range of applications. This paper discuss about use of fibre reinforced polymer (FRP) for strengthening of reinforced concrete arches. The experiment is conducted on shallow arches. Three arches are tested. One is used as a control arch while other two are strengthened using FRP strips in different patterns. Six non symmetric point loads are equally spaced along the arches. The arch is modelled as a polygon.
The document summarizes a masters thesis defense on the effects of concrete mixture properties on aggregate interlock. The research objectives were to establish relationships between concrete properties and load transfer efficiency and aggregate interlock, and investigate how properties affect fracture parameters and aggregate interlock. Testing included measuring fracture energy, flexural strength, and volumetric surface texture of concrete mixtures. Statistical models found volumetric surface texture was affected by aggregate top size, LA abrasion value, and water-cement ratio.
This PhD thesis characterizes welded transverse micro-fasteners for joining dissimilar metal and composite materials. Cold metal transfer welding was used to deposit micro-fasteners onto metal substrates. Single lap shear testing of metal-composite joints incorporating these micro-fasteners showed they can efficiently transfer load through adhesive while maintaining damage tolerance. Future work includes quantifying properties like porosity and fiber undulation effects around the welded micro-fasteners.
The document promotes Motorola's Service from the Start comprehensive coverage plan, which provides extended warranty protection and repairs accidental damage to Motorola mobile computers, scanners, and wireless products. It protects against the costs of repairs from normal wear and tear, accidental breakage, and display/component damage. The plans range in annual cost from €15.79 to €7.90 depending on the device and contract length, working out to €1.31-€0.66 per month. This comprehensive coverage sets a new standard by protecting customers' Motorola device investments for a low cost.
Battelle has developed three technologies to enable injection of highly viscous protein formulations:
1) A chemical reaction replaces springs in autoinjectors, providing controlled injection without strain in a compact size. It injected 75 cP silicone oil in under 10 seconds.
2) Core annular flow reduces apparent viscosity by flowing a low viscosity fluid along the outside of the needle, cutting injection time for an 85 cP glycerol solution from 180 to 6 seconds.
3) Liquid jet injection eliminates needles and injects fluids up to 6000 cP in under 100 milliseconds, 18 times faster than a standard needle.
This document summarizes a presentation on modeling the behavior of bolted joints in fiber reinforced composite laminates. The presentation includes:
1) An overview of factors affecting bolted joint behavior in composites and the need for numerical models to simulate real-world scenarios.
2) Details of the finite element model developed in Abaqus to model a single bolted composite joint, including geometry, materials, meshing, and validation of the linear model.
3) Implementation of a user subroutine to enable progressive failure analysis by degrading properties after different failure modes are reached based on Hashin's failure criteria.
4) Validation of the nonlinear model and subroutine against experimental data on composite plates and
This document discusses the use of cohesive zone modeling to simulate fatigue crack growth and retardation. Cohesive zone models define cohesive stresses around a crack tip that are related to crack opening width. Crack propagation occurs when cohesive stresses reach a failure value. The models can account for material properties through a cohesive law. Finite element implementations use cohesive elements located at crack fronts. The models can simulate crack closure effects, wedge effects, and predict crack growth under various loading conditions like overloads through an unloading-reloading hysteresis. Cohesive theory provides a unified way to model long cracks under constant loading as well as short cracks and overloads.
The document summarizes a student's thesis proposal on fabricating and comparing the mechanical properties of hybrid glass fiber reinforced plastic (GFRP) composites using epoxy resin with and without epoxy modifiers. The objectives are to fabricate GFRP using hand lay-up with epoxy resin and glass fibers with and without titanium dioxide modifier, and test the tensile, flexural, and shear strengths of the materials. Literature on using epoxy modifiers to improve mechanical properties of epoxy/fiber composites and vibration assisted machining of carbon fiber composites is reviewed. The methodology involves fabricating GFRP with and without modifiers, mechanical testing, and comparing results.
Reinforced arches have a wide range of applications. This paper discuss about use of fibre reinforced polymer (FRP) for strengthening of reinforced concrete arches. The experiment is conducted on shallow arches. Three arches are tested. One is used as a control arch while other two are strengthened using FRP strips in different patterns. Six non symmetric point loads are equally spaced along the arches. The arch is modelled as a polygon.
A COMPARATIVE ANALYSIS OF FINITE ELEMENT MODELING AND EXPERIMENTAL IMPACT TES...IRJET Journal
This document presents a comparative analysis of finite element modeling and experimental impact testing on kenaf and banana fiber composites. Composite specimens with varying fiber weight percentages of kenaf and banana fibers in a polyester matrix were fabricated and tested. Impact testing was performed experimentally using a Charpy test machine to determine the toughness of the composites. Finite element analysis software ANSYS was also used to model and analyze the stresses and strains of the composites under impact loading. The results from experimental impact testing were then compared to those from ANSYS modeling to validate the accuracy of the finite element analysis. The study aims to evaluate the potential of using kenaf and banana fibers as reinforcements in polymer composites.
The document discusses VERILAST technology for the LEGION primary knee system. It states that:
- Based on in-vitro wear simulation testing, the LEGION system using VERILAST technology is expected to provide sufficient wear performance for 30 years of use.
- The simulation results have not been proven to quantitatively predict clinical wear performance.
- A reduction in wear volume or rate alone may not result in improved outcomes, as particle size and morphology are also important factors. Particle size and morphology were not evaluated in the testing.
IRJET- Experimental Analysis of Mechanical and Thermal Properties of the Natu...IRJET Journal
1) The document experimentally analyzes the mechanical and thermal properties of natural fiber reinforced polymer composites with varying concentrations of banana fiber (10%, 15%, 20% by weight).
2) Samples were fabricated using hand lay-up molding with alkali-treated banana fibers and polyester resin. Mechanical tests for hardness, tensile strength, and impact strength were conducted at different temperatures.
3) Hardness and tensile strength increased with higher banana fiber loading up to 15% but increased at a lower rate from 15-20%. Impact strength generally increased with fiber loading and temperature but showed a higher rate of increase from 10-15% loading compared to 15-20%.
Comparison between Experimental Value and Finite Element Analysis value of Gl...IRJET Journal
This document compares the experimental and finite element analysis (FEA) values for glass fiber reinforced polymer (GFRP) composite materials. Specimens with different weight percentages of E-glass fibers in epoxy resin were tested experimentally for tensile strength, bending, and impact properties. An FEA model was also created using ANSYS software. The experimental values for mechanical properties like stress and strain were generally higher than the FEA values, likely due to inhomogeneities in the real specimens from imperfect fiber-matrix mixing and air bubbles. The FEA values provided a basis for comparison to evaluate the experimental test results.
IRJET- Fabrication and Characterization of Jute/Glass Fibre Reinforced Epoxy ...IRJET Journal
This document discusses the fabrication and characterization of jute/glass fiber reinforced epoxy hybrid composites. Various composites with different weight percentages of jute and glass fibers were created using hand layup and epoxy resin. Tensile and bending tests found that composites with 20% jute and 20% glass fiber exhibited the highest tensile strength, while composites with 28% jute and 12% glass fiber showed the highest flexural strength. The study demonstrated that hybrid composites of jute and glass fibers can improve the mechanical properties of epoxy resin.
Experimental study on fatigue behavior of Glass/vinyl ester CompositeAM Publications
The present work deals with the effect of coconut shell powder filler on the fatigue behavior of glass fiber reinforced polymer composite. The tensile and fatigue tests have been carried out for 4 mm and 10 mm length glass fibers, vinyl ester and coconut shell powder filler composites with varied volume fraction. The results show that the composite made with 10 mm length glass fiber gave good tensile and low cycle fatigue strength when compared to composite made with 4 mm length glass fiber by considering the different composition with or without coconut shell powder used as filler. The addition of filler content improves the fatigue life of a composite.[2]
Mesomechanics- The domain for Structural Integrity Evalution of fibre polyme...Padmanabhan Krishnan
The importance of Mesomechanics as the The domain for Structural Integrity Evalution of fibre polymer composites is described in comparison with the micromechanical domains that are of importance in ceramics and their composites.
This document describes research into developing glass/banana fiber reinforced epoxy composites. Banana fibers were obtained from banana plants and characterized. Glass and banana fibers were combined at various weight fractions and arranged interleaving to reinforce epoxy composites. The composites were tested for tensile strength, flexural strength, and impact strength. Hybrid composites showed improved mechanical properties compared to glass-only and banana-only composites. Specifically, tensile strength increased by up to 2.5% for glass and 63.4% for banana when hybridized. Flexural strength increased up to 6.9% for glass and 27.3% for banana when hybridized. Impact strength increased up to 5.1% for
IRJET- Mechanical Behavior of Coconut Shell Powder Filled with Sisal Fiber, R...IRJET Journal
This document summarizes research into the mechanical behavior of coconut shell powder filled sisal fiber reinforced epoxy hybrid composites. The study prepared composite specimens with varying weight percentages of coconut shell powder (0%, 5%, 10%, 15%) and tested them according to ASTM standards to determine mechanical properties. Tensile, impact, and bending tests were conducted to compare the mechanical behavior of the different compositions. The results of the tensile and impact tests showed the peak loads achieved by each composite formulation. The research aims to develop an environmentally friendly composite using renewable natural fibers and fillers.
Characterization of Mechanical Behavior of New Hybrid Fiber Reinforced Compos...KMallikarjuna2
A Composite material is a combination of two or more macro constituents that differ in shape and chemical composition and which are insoluble in each other. The history of composite materials dates back to early 20th century. In 1940, fiber glass was first used to reinforce epoxy
Characterization of Mechanical Behavior of New Hybrid Fiber Reinforced Compos...KMallikarjuna2
A Composite material is a combination of two or more macro constituents that differ in shape and chemical composition and which are insoluble in each other. The history of composite materials dates back to early 20th century. In 1940, fiber glass was first used to reinforce epoxy
This document summarizes research on the tensile properties of bamboo fiber polymer composites. Various bamboo fiber-epoxy composite samples were created with different fiber weight percentages (0-30%) using hand lay-up. Tensile testing found that the tensile strength increased with fiber content up to 25% bamboo fiber, where it reached a maximum of 53.61 MPa. Beyond 25% fiber content, the tensile strength decreased. The study demonstrated that the tensile properties of the bamboo fiber composites depend on the fiber loading percentage.
CHARACTERIZATION OF TENSILE PROPERTIES OF TREATED BAMBOO NATURAL FIBRE POLYME...IAEME Publication
This document summarizes research on the tensile properties of bamboo fiber polymer composites. Various bamboo fiber-epoxy composite samples were created with different fiber weight percentages (0-30%) using hand lay-up. Tensile testing found that the tensile strength increased with fiber content up to 25% bamboo fiber, where it reached a maximum of 53.61 MPa. Further increases in fiber content led to decreases in tensile strength. The study demonstrated that tensile strength of the bamboo fiber composites depends on the fiber loading percentage.
IRJET-Study of Properties of Banana Fiber Reinforced with Jute FiberIRJET Journal
1. The study investigates reinforcing banana fiber with jute fiber to improve its mechanical properties for increased usage.
2. Specimens of banana and jute fiber reinforced with epoxy resin were prepared and tested for tensile strength, flexural strength, and impact resistance.
3. The tensile strength was found to increase with increased fiber thickness, while the flexural and impact strengths improved by optimizing the fiber-resin composition. Reinforcing banana fiber with jute fiber shows potential for developing stronger, more durable natural fiber composites.
This document summarizes a study that investigated stress concentrations in laser-cut polymethylmethacrylate (PMMA) material under static and centripetal loading. Tensile tests were performed on standardized specimens with varying fillet radii. Additional centripetal tests were done on laser-cut fan blades. Finite element analysis was used to model the tests and compare results. Tensile testing showed stress concentration factors lower than literature values. Centripetal testing yielded variable fracture speeds. Finite element analysis correlated well with tensile testing but was less predictive for centripetal loading due to complex blade geometry.
Finite Element Analysis of Skate Board Made of Bamboo CompositeIRJET Journal
This document discusses a study that analyzed bamboo composite material for use in a skateboard. Bamboo strips were used to create composite samples with varying bamboo volume fractions. Flexural testing found that samples with 50% bamboo volume had the highest flexural strength of 195.5 MPa. The elastic properties of the composite were determined. Finite element analysis of a skateboard model made of the bamboo composite found that the stresses were within the material's permissible range, indicating bamboo composite is a promising alternative to synthetic fiber composites for this application.
The use of artificial fiber reinforced composites are widely used in many applications
such as automobile, aircraft manufacturing because they are cost effective and offers high
strength, and weight ratio compared to other composites with similar applications. In this
work, epoxy was selected as a matrix material to prepare a composite specimens
reinforced with UHMWPE fabric with varying layers. Composite specimens are prepared
by varying the number of fabric layers and Taguchi’s L9 orthogonal array method is used
to study the Tribological behavior. The test specimen of composite material had been
prepared using hand layup technique and the samples were tested for wear properties
using the equipment DUCOM made pin on disc experimental setup. The weight was
measured before and after the experiment is conducted. The effects of the Tribological
operating parameters applied load, sliding velocity and sliding distance on the frictional
and wear performance of UHMWPE fabric reinforced composites are demonstrated.
Moreover, water absorption tests were conducted to know their effect over a period of
time for both the aerial densities 200gsm and 240gsm of the fiber mats. It was observed
that the wear response of the specimens is influenced by the applied load, sliding distance
and the speed
IRJET - Experimental Investigation and Comparison on Mechanical Properties of...IRJET Journal
This document investigates the mechanical properties of reinforced concrete columns wrapped with kenaf and basalt fibres. Kenaf fibre is a natural fibre obtained from plants, while basalt fibre is a synthetic fibre produced from molten basalt rock. Columns were cast with steel reinforcement and wrapped in kenaf or basalt fabric after curing. Testing found that columns wrapped with basalt fibre were three times stronger than unwrapped columns, while kenaf fibre wrapping doubled the strength. Both fibres improved the strength and lifespan of reinforced concrete columns compared to unwrapped columns. Basalt fibre provided higher strength than kenaf fibre. Fibre wrapping is an effective and economical technique to strengthen existing concrete structures.
IRJET - Study on Strength Parameters of Concrete by Adding Banana FibersIRJET Journal
This document presents a study on the effects of adding banana fibers to concrete mixtures. Various concrete mixtures were prepared with 0%, 0.5%, 1%, and 1.5% banana fibers by volume. The concrete specimens were tested for compressive strength, splitting tensile strength, and flexural strength at 7 and 28 days. The results showed that the addition of banana fibers up to 0.5% improved the compressive strength, splitting tensile strength, and flexural strength of the concrete compared to the reference mixture without fibers. The maximum improvement was seen at 0.5% fiber content, with an 18.18% increase in compressive strength compared to the plain concrete. Thus, the addition of banana fibers enhances the mechanical
Textile yarn manufacturing involves several key steps. Fibers are first opened and cleaned through blowroom and carding processes. Drawing further arranges fibers into parallel strands called slivers. Roving attenuates slivers and adds twist. Ring frames then spin roving into yarn using drafts and twist. Combing upgrades raw materials by removing short fibers. The processes work to arrange, draft, and twist fibers into consistent yarns for weaving or other uses.
The document discusses weaving technology and processes. It describes how weaving involves interlacing two sets of threads, the warp and weft. It then summarizes the key steps in preparing yarn for weaving: warping to transfer yarn to a beam, sizing to reduce hairiness and increase strength, and drawing-in yarns into the loom. The basic mechanisms of warp and weft control in weaving are also outlined.
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This document presents a comparative analysis of finite element modeling and experimental impact testing on kenaf and banana fiber composites. Composite specimens with varying fiber weight percentages of kenaf and banana fibers in a polyester matrix were fabricated and tested. Impact testing was performed experimentally using a Charpy test machine to determine the toughness of the composites. Finite element analysis software ANSYS was also used to model and analyze the stresses and strains of the composites under impact loading. The results from experimental impact testing were then compared to those from ANSYS modeling to validate the accuracy of the finite element analysis. The study aims to evaluate the potential of using kenaf and banana fibers as reinforcements in polymer composites.
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- Based on in-vitro wear simulation testing, the LEGION system using VERILAST technology is expected to provide sufficient wear performance for 30 years of use.
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- A reduction in wear volume or rate alone may not result in improved outcomes, as particle size and morphology are also important factors. Particle size and morphology were not evaluated in the testing.
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1) The document experimentally analyzes the mechanical and thermal properties of natural fiber reinforced polymer composites with varying concentrations of banana fiber (10%, 15%, 20% by weight).
2) Samples were fabricated using hand lay-up molding with alkali-treated banana fibers and polyester resin. Mechanical tests for hardness, tensile strength, and impact strength were conducted at different temperatures.
3) Hardness and tensile strength increased with higher banana fiber loading up to 15% but increased at a lower rate from 15-20%. Impact strength generally increased with fiber loading and temperature but showed a higher rate of increase from 10-15% loading compared to 15-20%.
Comparison between Experimental Value and Finite Element Analysis value of Gl...IRJET Journal
This document compares the experimental and finite element analysis (FEA) values for glass fiber reinforced polymer (GFRP) composite materials. Specimens with different weight percentages of E-glass fibers in epoxy resin were tested experimentally for tensile strength, bending, and impact properties. An FEA model was also created using ANSYS software. The experimental values for mechanical properties like stress and strain were generally higher than the FEA values, likely due to inhomogeneities in the real specimens from imperfect fiber-matrix mixing and air bubbles. The FEA values provided a basis for comparison to evaluate the experimental test results.
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This document discusses the fabrication and characterization of jute/glass fiber reinforced epoxy hybrid composites. Various composites with different weight percentages of jute and glass fibers were created using hand layup and epoxy resin. Tensile and bending tests found that composites with 20% jute and 20% glass fiber exhibited the highest tensile strength, while composites with 28% jute and 12% glass fiber showed the highest flexural strength. The study demonstrated that hybrid composites of jute and glass fibers can improve the mechanical properties of epoxy resin.
Experimental study on fatigue behavior of Glass/vinyl ester CompositeAM Publications
The present work deals with the effect of coconut shell powder filler on the fatigue behavior of glass fiber reinforced polymer composite. The tensile and fatigue tests have been carried out for 4 mm and 10 mm length glass fibers, vinyl ester and coconut shell powder filler composites with varied volume fraction. The results show that the composite made with 10 mm length glass fiber gave good tensile and low cycle fatigue strength when compared to composite made with 4 mm length glass fiber by considering the different composition with or without coconut shell powder used as filler. The addition of filler content improves the fatigue life of a composite.[2]
Mesomechanics- The domain for Structural Integrity Evalution of fibre polyme...Padmanabhan Krishnan
The importance of Mesomechanics as the The domain for Structural Integrity Evalution of fibre polymer composites is described in comparison with the micromechanical domains that are of importance in ceramics and their composites.
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1. The study investigates reinforcing banana fiber with jute fiber to improve its mechanical properties for increased usage.
2. Specimens of banana and jute fiber reinforced with epoxy resin were prepared and tested for tensile strength, flexural strength, and impact resistance.
3. The tensile strength was found to increase with increased fiber thickness, while the flexural and impact strengths improved by optimizing the fiber-resin composition. Reinforcing banana fiber with jute fiber shows potential for developing stronger, more durable natural fiber composites.
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This document discusses a study that analyzed bamboo composite material for use in a skateboard. Bamboo strips were used to create composite samples with varying bamboo volume fractions. Flexural testing found that samples with 50% bamboo volume had the highest flexural strength of 195.5 MPa. The elastic properties of the composite were determined. Finite element analysis of a skateboard model made of the bamboo composite found that the stresses were within the material's permissible range, indicating bamboo composite is a promising alternative to synthetic fiber composites for this application.
The use of artificial fiber reinforced composites are widely used in many applications
such as automobile, aircraft manufacturing because they are cost effective and offers high
strength, and weight ratio compared to other composites with similar applications. In this
work, epoxy was selected as a matrix material to prepare a composite specimens
reinforced with UHMWPE fabric with varying layers. Composite specimens are prepared
by varying the number of fabric layers and Taguchi’s L9 orthogonal array method is used
to study the Tribological behavior. The test specimen of composite material had been
prepared using hand layup technique and the samples were tested for wear properties
using the equipment DUCOM made pin on disc experimental setup. The weight was
measured before and after the experiment is conducted. The effects of the Tribological
operating parameters applied load, sliding velocity and sliding distance on the frictional
and wear performance of UHMWPE fabric reinforced composites are demonstrated.
Moreover, water absorption tests were conducted to know their effect over a period of
time for both the aerial densities 200gsm and 240gsm of the fiber mats. It was observed
that the wear response of the specimens is influenced by the applied load, sliding distance
and the speed
IRJET - Experimental Investigation and Comparison on Mechanical Properties of...IRJET Journal
This document investigates the mechanical properties of reinforced concrete columns wrapped with kenaf and basalt fibres. Kenaf fibre is a natural fibre obtained from plants, while basalt fibre is a synthetic fibre produced from molten basalt rock. Columns were cast with steel reinforcement and wrapped in kenaf or basalt fabric after curing. Testing found that columns wrapped with basalt fibre were three times stronger than unwrapped columns, while kenaf fibre wrapping doubled the strength. Both fibres improved the strength and lifespan of reinforced concrete columns compared to unwrapped columns. Basalt fibre provided higher strength than kenaf fibre. Fibre wrapping is an effective and economical technique to strengthen existing concrete structures.
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This document presents a study on the effects of adding banana fibers to concrete mixtures. Various concrete mixtures were prepared with 0%, 0.5%, 1%, and 1.5% banana fibers by volume. The concrete specimens were tested for compressive strength, splitting tensile strength, and flexural strength at 7 and 28 days. The results showed that the addition of banana fibers up to 0.5% improved the compressive strength, splitting tensile strength, and flexural strength of the concrete compared to the reference mixture without fibers. The maximum improvement was seen at 0.5% fiber content, with an 18.18% increase in compressive strength compared to the plain concrete. Thus, the addition of banana fibers enhances the mechanical
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Textile yarn manufacturing involves several key steps. Fibers are first opened and cleaned through blowroom and carding processes. Drawing further arranges fibers into parallel strands called slivers. Roving attenuates slivers and adds twist. Ring frames then spin roving into yarn using drafts and twist. Combing upgrades raw materials by removing short fibers. The processes work to arrange, draft, and twist fibers into consistent yarns for weaving or other uses.
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Measurement Technology NW has over 18 years of experience providing thermal testing systems and capabilities. They have an in-house technical staff and climate controlled chamber. MTNW offers various types of thermal manikins and test equipment that can measure factors important for human thermal comfort, such as air temperature, humidity and clothing insulation values. Their thermal manikins, including Newton and NEMO models, have integrated heating elements and can simulate sweating to evaluate clothing and environments.
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The document discusses research done at the University of New Orleans on developing multifunctional composite materials with properties of energy absorption, blast protection, and durability. The research applied nanotechnology by utilizing nanomaterials to dissipate shock and blast energy through mechanisms like friction and slip-stick motion. Experiments were conducted using nano-particle filled composites under impact loading and CNT reinforced composites for vibration damping. The research proved that energy absorption can be achieved through nanoparticle interfaces providing large energy sinks.
This document discusses the applications of nanotechnology in modern textiles. It begins by defining nanotechnology and its potential benefits for textiles such as enhancing fiber properties. It then discusses developments in nano-fibers like carbon nanotubes that exhibit extraordinary mechanical properties. Additional sections cover applications of nanotechnology in fabric finishes that can impart properties like stain resistance and applications in various industries. The document concludes by discussing future directions and challenges for nanotechnology in textiles.
Infrastructure Challenges in Scaling RAG with Custom AI modelsZilliz
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Monitoring and Managing Anomaly Detection on OpenShift.pdfTosin Akinosho
Monitoring and Managing Anomaly Detection on OpenShift
Overview
Dive into the world of anomaly detection on edge devices with our comprehensive hands-on tutorial. This SlideShare presentation will guide you through the entire process, from data collection and model training to edge deployment and real-time monitoring. Perfect for those looking to implement robust anomaly detection systems on resource-constrained IoT/edge devices.
Key Topics Covered
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- Understand the fundamentals of anomaly detection and its importance in identifying unusual behavior or failures in systems.
2. Understanding Edge (IoT)
- Learn about edge computing and IoT, and how they enable real-time data processing and decision-making at the source.
3. What is ArgoCD?
- Discover ArgoCD, a declarative, GitOps continuous delivery tool for Kubernetes, and its role in deploying applications on edge devices.
4. Deployment Using ArgoCD for Edge Devices
- Step-by-step guide on deploying anomaly detection models on edge devices using ArgoCD.
5. Introduction to Apache Kafka and S3
- Explore Apache Kafka for real-time data streaming and Amazon S3 for scalable storage solutions.
6. Viewing Kafka Messages in the Data Lake
- Learn how to view and analyze Kafka messages stored in a data lake for better insights.
7. What is Prometheus?
- Get to know Prometheus, an open-source monitoring and alerting toolkit, and its application in monitoring edge devices.
8. Monitoring Application Metrics with Prometheus
- Detailed instructions on setting up Prometheus to monitor the performance and health of your anomaly detection system.
9. What is Camel K?
- Introduction to Camel K, a lightweight integration framework built on Apache Camel, designed for Kubernetes.
10. Configuring Camel K Integrations for Data Pipelines
- Learn how to configure Camel K for seamless data pipeline integrations in your anomaly detection workflow.
11. What is a Jupyter Notebook?
- Overview of Jupyter Notebooks, an open-source web application for creating and sharing documents with live code, equations, visualizations, and narrative text.
12. Jupyter Notebooks with Code Examples
- Hands-on examples and code snippets in Jupyter Notebooks to help you implement and test anomaly detection models.
OpenID AuthZEN Interop Read Out - AuthorizationDavid Brossard
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* Importance and benefits of vector search
* Practical use cases across various industries
* Step-by-step implementation guide
* Live demos with code snippets
* Enhancing LLM capabilities with vector search
* Best practices and optimization strategies
Perfect for developers, AI enthusiasts, and tech leaders. Learn how to leverage MongoDB Atlas to deliver highly relevant, context-aware search results, transforming your data retrieval process. Stay ahead in tech innovation and maximize the potential of your applications.
#MongoDB #VectorSearch #AI #SemanticSearch #TechInnovation #DataScience #LLM #MachineLearning #SearchTechnology
“An Outlook of the Ongoing and Future Relationship between Blockchain Technologies and Process-aware Information Systems.” Invited talk at the joint workshop on Blockchain for Information Systems (BC4IS) and Blockchain for Trusted Data Sharing (B4TDS), co-located with with the 36th International Conference on Advanced Information Systems Engineering (CAiSE), 3 June 2024, Limassol, Cyprus.
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1. How quickly AI is being implemented in manufacturing.
2. Which barriers stand in the way of AI adoption.
3. How data quality and governance form the backbone of AI.
4. Organizational processes and structures that may inhibit effective AI adoption.
6. Ideas and approaches to help build your organization's AI strategy.
For the full video of this presentation, please visit: https://www.edge-ai-vision.com/2024/06/building-and-scaling-ai-applications-with-the-nx-ai-manager-a-presentation-from-network-optix/
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In this presentation, van Emden covers the basics of scaling edge AI solutions using the Nx tool kit. He emphasizes the process of developing AI models and deploying them globally. He also showcases the conversion of AI models and the creation of effective edge AI pipelines, with a focus on pre-processing, model conversion, selecting the appropriate inference engine for the target hardware and post-processing.
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Best 20 SEO Techniques To Improve Website Visibility In SERPPixlogix Infotech
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In his public lecture, Christian Timmerer provides insights into the fascinating history of video streaming, starting from its humble beginnings before YouTube to the groundbreaking technologies that now dominate platforms like Netflix and ORF ON. Timmerer also presents provocative contributions of his own that have significantly influenced the industry. He concludes by looking at future challenges and invites the audience to join in a discussion.
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Webinar Recording: https://www.panagenda.com/webinars/hcl-notes-und-domino-lizenzkostenreduzierung-in-der-welt-von-dlau/
DLAU und die Lizenzen nach dem CCB- und CCX-Modell sind für viele in der HCL-Community seit letztem Jahr ein heißes Thema. Als Notes- oder Domino-Kunde haben Sie vielleicht mit unerwartet hohen Benutzerzahlen und Lizenzgebühren zu kämpfen. Sie fragen sich vielleicht, wie diese neue Art der Lizenzierung funktioniert und welchen Nutzen sie Ihnen bringt. Vor allem wollen Sie sicherlich Ihr Budget einhalten und Kosten sparen, wo immer möglich. Das verstehen wir und wir möchten Ihnen dabei helfen!
Wir erklären Ihnen, wie Sie häufige Konfigurationsprobleme lösen können, die dazu führen können, dass mehr Benutzer gezählt werden als nötig, und wie Sie überflüssige oder ungenutzte Konten identifizieren und entfernen können, um Geld zu sparen. Es gibt auch einige Ansätze, die zu unnötigen Ausgaben führen können, z. B. wenn ein Personendokument anstelle eines Mail-Ins für geteilte Mailboxen verwendet wird. Wir zeigen Ihnen solche Fälle und deren Lösungen. Und natürlich erklären wir Ihnen das neue Lizenzmodell.
Nehmen Sie an diesem Webinar teil, bei dem HCL-Ambassador Marc Thomas und Gastredner Franz Walder Ihnen diese neue Welt näherbringen. Es vermittelt Ihnen die Tools und das Know-how, um den Überblick zu bewahren. Sie werden in der Lage sein, Ihre Kosten durch eine optimierte Domino-Konfiguration zu reduzieren und auch in Zukunft gering zu halten.
Diese Themen werden behandelt
- Reduzierung der Lizenzkosten durch Auffinden und Beheben von Fehlkonfigurationen und überflüssigen Konten
- Wie funktionieren CCB- und CCX-Lizenzen wirklich?
- Verstehen des DLAU-Tools und wie man es am besten nutzt
- Tipps für häufige Problembereiche, wie z. B. Team-Postfächer, Funktions-/Testbenutzer usw.
- Praxisbeispiele und Best Practices zum sofortigen Umsetzen
Fueling AI with Great Data with Airbyte WebinarZilliz
This talk will focus on how to collect data from a variety of sources, leveraging this data for RAG and other GenAI use cases, and finally charting your course to productionalization.
In the rapidly evolving landscape of technologies, XML continues to play a vital role in structuring, storing, and transporting data across diverse systems. The recent advancements in artificial intelligence (AI) present new methodologies for enhancing XML development workflows, introducing efficiency, automation, and intelligent capabilities. This presentation will outline the scope and perspective of utilizing AI in XML development. The potential benefits and the possible pitfalls will be highlighted, providing a balanced view of the subject.
We will explore the capabilities of AI in understanding XML markup languages and autonomously creating structured XML content. Additionally, we will examine the capacity of AI to enrich plain text with appropriate XML markup. Practical examples and methodological guidelines will be provided to elucidate how AI can be effectively prompted to interpret and generate accurate XML markup.
Further emphasis will be placed on the role of AI in developing XSLT, or schemas such as XSD and Schematron. We will address the techniques and strategies adopted to create prompts for generating code, explaining code, or refactoring the code, and the results achieved.
The discussion will extend to how AI can be used to transform XML content. In particular, the focus will be on the use of AI XPath extension functions in XSLT, Schematron, Schematron Quick Fixes, or for XML content refactoring.
The presentation aims to deliver a comprehensive overview of AI usage in XML development, providing attendees with the necessary knowledge to make informed decisions. Whether you’re at the early stages of adopting AI or considering integrating it in advanced XML development, this presentation will cover all levels of expertise.
By highlighting the potential advantages and challenges of integrating AI with XML development tools and languages, the presentation seeks to inspire thoughtful conversation around the future of XML development. We’ll not only delve into the technical aspects of AI-powered XML development but also discuss practical implications and possible future directions.
Threats to mobile devices are more prevalent and increasing in scope and complexity. Users of mobile devices desire to take full advantage of the features
available on those devices, but many of the features provide convenience and capability but sacrifice security. This best practices guide outlines steps the users can take to better protect personal devices and information.
HCL Notes and Domino License Cost Reduction in the World of DLAUpanagenda
Webinar Recording: https://www.panagenda.com/webinars/hcl-notes-and-domino-license-cost-reduction-in-the-world-of-dlau/
The introduction of DLAU and the CCB & CCX licensing model caused quite a stir in the HCL community. As a Notes and Domino customer, you may have faced challenges with unexpected user counts and license costs. You probably have questions on how this new licensing approach works and how to benefit from it. Most importantly, you likely have budget constraints and want to save money where possible. Don’t worry, we can help with all of this!
We’ll show you how to fix common misconfigurations that cause higher-than-expected user counts, and how to identify accounts which you can deactivate to save money. There are also frequent patterns that can cause unnecessary cost, like using a person document instead of a mail-in for shared mailboxes. We’ll provide examples and solutions for those as well. And naturally we’ll explain the new licensing model.
Join HCL Ambassador Marc Thomas in this webinar with a special guest appearance from Franz Walder. It will give you the tools and know-how to stay on top of what is going on with Domino licensing. You will be able lower your cost through an optimized configuration and keep it low going forward.
These topics will be covered
- Reducing license cost by finding and fixing misconfigurations and superfluous accounts
- How do CCB and CCX licenses really work?
- Understanding the DLAU tool and how to best utilize it
- Tips for common problem areas, like team mailboxes, functional/test users, etc
- Practical examples and best practices to implement right away
HCL Notes and Domino License Cost Reduction in the World of DLAU
Study On Impact Resistance Performance Of Arenga Pinnata Fibre Reinforced Composite
1. Study on Impact Resistance Performance of Arenga Pinnata Fibre
Reinforced Composite
By:
Ahmad Mujahid Ahmad Zaidi
Advance Textile Training Centre (ADTEC)
Faculty of Mechanical and Manufacturing Engineering
Universiti Tun Hussein Onn Malaysia
2. Study on Impact Resistance Performance of Arenga Pinnata Fibre Reinforced Composite
What is Composite?
Composite materials (or composites for short) are engineered materials made
from two or more constituent materials with significantly different physical or
chemical properties which remain separate and distinct on a macroscopic level
within the finished structure.
Advantages: Lightweight, Good materials properties, etc.
Figure 1: Applications of composite materials.
3. Study on Impact Resistance Performance of Arenga Pinnata Fibre Reinforced Composite
Why “IMPACT STUDY” on COMPOSITES?
qComposites materials are often to used as a protective structure.
(b) Safety requirements for transportation
(a) Nuclear protective requirements
(c) Protective composnents
Figure 2(a)-(c): Application of protective structure
4. Study on Impact Resistance Performance of Arenga Pinnata Fibre Reinforced Composite
qThreats from kinetic missiles.
(a) Military Application
(b) Explosion (c) Natural forces
Figure 3(a)-(c): Various missile threats
5. Study on Impact Resistance Performance of Arenga Pinnata Fibre Reinforced Composite
qDangerous implication.
Head of Severity Index (HSI)
< 1000
(a) Damage on vehicle
Important parameter:
Acceleration = Velocity/ time
(b) Effects on brain
Figure 4 (a-b): Implication of impact on concrete structural
6. Study on Impact Resistance Performance of Arenga Pinnata Fibre Reinforced Composite
qSolution-New COMPOSITE materials.
Energy absorption model
Figure 5: Energy absorption
model
Acceleration-time analysis
7. Study on Impact Resistance Performance of Arenga Pinnata Fibre Reinforced Composite
What are Important Ingredients in Composite?
Two IMPORTANT INGREDIENTS, i.e. filler (fibre reinforcement) and matrix
binder.
Types of FIBRE:
qNatural :
Cellulose
Animal
qSynthetic :
Oil based fibre.
8. Study on Impact Resistance Performance of Arenga Pinnata Fibre Reinforced Composite
Why is Natural Fibre?
Nature continues to provide mankind generously with all kinds of rich resources
in plentiful abundance, such as natural fibres from a vast number of plants.
However, since the last decade, a great deal of emphasis has been focused on
the development and application of natural fibre as reinforcement in composite
materials in many industries. This is due to the natural fibres composites are
undergoing a high tech revolution and are replacing conventional
composites in high performance applications due to their advantages over
conventional reinforcements. For this reason natural fibres reinforced composite
are applicable and need broader research programmes. Moreover, due to the
relatively high cost of synthetic fibres such as glass, plastic, carbon and
Kevlar used in fibre reinforced composites and the health hazards of asbestos
fibres, it becomes necessary to explore natural fibres, e.g. cotton, sisal, jute,
palm oil, paddy, ijok, etc. In addition, the main advantages of these fibres are
their availability in large quantities in many countries, good thermal and
acoustic insulating properties, better electrical resistance, higher resistance to
fracture and impact absorption, low density, low cost and ease to manufacture.
9. Study on Impact Resistance Performance of Arenga Pinnata Fibre Reinforced Composite
What is Arenga Pinnata?
IJUK or scientific name is Arenga Pinnata is a type of PALM TREE native to
tropical ASIA (inc. MALAYSIA). Medium size palm (growing up to 20m) and
trunk covered by rough old leaf bases. In this research, the composite material
is made by using IJUK fibre as reinforcement and epoxy resin as a binder.
10. Study on Impact Resistance Performance of Arenga Pinnata Fibre Reinforced Composite
Why is Arenga Pinnata fibre?
qAvailability-in tropical countries, e.g. MALAYSIA
qFast fibre growth rate.
qInteresting finding on ITS TENSILE STRENGTH-water treatment.
11. Study on Impact Resistance Performance of Arenga Pinnata Fibre Reinforced Composite
FABRICATION PROCESS
Matrix Binder
12. Study on Impact Resistance Performance of Arenga Pinnata Fibre Reinforced Composite
MATERIAL PROPERTIES Ijuk Long random fibre vs Fibre added
90
80
70
Flexural strength (MPa)
60
Specimen 1
50 Specimen 2
Flexural Tests 40
Specimen 3
Specimen 4
Specimen 5
30
20
10
0
10 15 20
Weight fibre (%)
Ijuk Long random fibre vs Fibre added
3.50
3.00
Modulus strength (MPa)
2.50
Specimen 1
2.00 Specimen 2
Specimen 3
1.50 Specimen 4
Specimen 5
1.00
0.50
0.00
10 15 20
Weight fibre (%)
15. Study on Impact Resistance Performance of Arenga Pinnata Fibre Reinforced Composite
Long random fibre of ijuk + E Resin
60
Tensile Tests 50
Tensile Strength (MPa)
40 T1
T2
30 T3
T4
20 T5
10
0
10 15 20
% wt. fibre
Chooped random fibre of ijuk + E Resin Woven roving fibre of ijuk + E Resin
30 35
25 30
Tensile Strength (MPa)
Tensile Strength (MPa)
25
20 V1 U1
V2 20 U2
15 V3 U3
V4 15 U4
10 V5 U5
10
5
5
0 0
10 15 20 10 15 20
% wt. fibre % wt. fibre
16. Study on Impact Resistance Performance of Arenga Pinnata Fibre Reinforced Composite
IMPACT PROPERTIES
Energy Adsorbed vs Fibres Added
(Ijuk Long Fibre)
0,35
E n erg y A dso rb ed (J)
0,30
CT1
0,25
CT2
0,20
CT3
0,15
CT4
0,10
CT5
0,05
0,00
10 15 20
Fibre Added (%)
Energy Adsorbed vs Fibres Added Energy Adsorbed vs Fibres Added
(Ijuk Woven Fibre) (Ijuk Chopped Fibre)
2,5
0,35
E n erg y A d so rb ed (J )
Energy Adsorbed (J)
2 0,30
CR1 CS1
0,25
1,5 CR2 CS2
0,20
CR3 CS3
1 0,15
CR4 CS4
0,10
CR5 CS5
0,5 0,05
0 0,00
10 15 20 10 15 20
Fibre Added (%) Fibre Added (%)
17. Study on Impact Resistance Performance of Arenga Pinnata Fibre Reinforced Composite
18. Study on Impact Resistance Performance of Arenga Pinnata Fibre Reinforced Composite
PRODUCT DEVELOPMENT
qMOTORCYCLE INDUSTRIES:
Helmet-Ijuk Reinforced Composite [H-IReC]
PASSED MS-TEST: Conducted by QAS INT., SIRIM
Project collaborators:
HUSM-Prof.Jafri Malin Abdullah
AMTC, SIRIM-Dr.Mohd Zaid Othman
QAS International, SIRIM-Mr.Wan Mohd Rafi Wan Hussin
MIROS-Assoc.Prof.Dr.Wong Shaw Voon
AdVeS-Dr.Waluyo Adi Siswanto
K-UTECH-Khalil Mohamad
19. Study on Impact Resistance Performance of Arenga Pinnata Fibre Reinforced Composite
qFURNITURE INDUSTRIES
Current projects:
Development of HARD TOP TABLE/ WORK BENCH
Development of FANCY/UNIQUE top surfaces
Project collaborators:
KU-TECH
Universiti Tun Hussein Onn Malaysia,
86 400 Parit Raja,
Batu Pahat, Johor
Portable composite table
20. Study on Impact Resistance Performance of Arenga Pinnata Fibre Reinforced Composite
Details of R&D
q Cost of R&D: RM 10,000
q Source of R&D: Product Development Grant-UTHM
Awards:
• Silver Medal (ITEX 2009)
• Silver Medal (Research & Innovation Fest 2008)
• Bronze Medal (Innova-Brussels, Belgium 2009)
• Bronze Medal (Malaysia Technology Expo 2009)
21. BRIEF ABOUT PRESENTER
Ahmad Mujahid Ahmad Zaidi was born in 1980 at Taiping, Perak. He
received his B.Eng. with Honours in Mechanical Engineering at
UTHM (formerly known as KUiTTHO) and completed his PhD in
Impact and Explosion Engineering (Specialisation in Protective
Technology) at The University of Manchester (formerly known as
UMIST). He is an active researcher and has produced over 60
technical papers. He is currently working as a lecturer at Department
of Mechanics, FKMP, UTHM. In 2008, he has been invited as an
Honorary Academic Visiting Fellow from Impact and Explosion
Research Group, The University of Manchester, U.K. He is a Council
Member of Concrete Society of Malaysia (CSM), Member of Institute
of Engineering Technology (IET) and Member of International
Association of Engineers (IAENG).
He is also serve as an Editorial Board for the Journals:
1) Modern Applied Science-CANADA
[ISSN: 1913-1844 (Print) 1913-1852 (Online)] http://www.ccsenet.org/mas/
2) Journal of Mathematics Research-CANADA
[ISSN: 1916-9795 (Print) 1916-9809(Online)] http://www.ccsenet.org/jmr/
3) Applied Physics Research-CANADA
[ISSN:1916-9639(Print) 1916-9647(Online)] http://www.ccsenet.org/apr/
4) International Journal of Integrated Engineering-MALAYSIA
[ISSN: 1985-854X(Print)].