Design of a Multi-Material Body Structure with High Crashworthiness
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An experimental study was conducted to compare the impact response of 3D fabric composites to woven fiberglass cloth in configurations of 4, 7, and 16 layers. Impact tests using a Charpy machine found that composites with 3D fabric exhibited the highest energy absorption. The 3D fabric is able to crush its vertical fibers to dampen the impact shock without damage on the other side. Simulations were also performed to optimize impact performance and reduce experimental costs.
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International Journal of Engineering Research and Applications (IJERA) is an open access online peer reviewed international journal that publishes research and review articles in the fields of Computer Science, Neural Networks, Electrical Engineering, Software Engineering, Information Technology, Mechanical Engineering, Chemical Engineering, Plastic Engineering, Food Technology, Textile Engineering, Nano Technology & science, Power Electronics, Electronics & Communication Engineering, Computational mathematics, Image processing, Civil Engineering, Structural Engineering, Environmental Engineering, VLSI Testing & Low Power VLSI Design etc.
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Electrical, Electronics and Computer Engineering,
Information Engineering and Technology,
Mechanical, Industrial and Manufacturing Engineering,
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Review on Design and Analysis of Front Bumper
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Similar to Design of a Multi-Material Body Structure with High Crashworthiness
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ranging from thousands to infinity in continuous fibers. Increasing worldwide environmental awareness is
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processing/manufacturing methods and to examine the mechanical properties when subjected to Tension, Bending
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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.D012241727
This document discusses the design and analysis of an automotive front bumper beam for low-speed impact. It aims to study the key parameters of bumper beams, such as material, shape, and impact conditions to improve crashworthiness. A simulation of the bumper beam undergoing a low-velocity impact test as specified in international standards is performed. The strength of the bumper beam in elastic mode is analyzed by evaluating energy absorption and impact force at maximum deflection. Simulations are run with bumper beams made of different materials to compare deflection, impact force, stress distribution, and energy absorption. The results show that an M220 material minimizes deflection, impact force, stress, and maximizes energy absorption compared to
Db4201697703
International Journal of Engineering Research and Applications (IJERA) is an open access online peer reviewed international journal that publishes research and review articles in the fields of Computer Science, Neural Networks, Electrical Engineering, Software Engineering, Information Technology, Mechanical Engineering, Chemical Engineering, Plastic Engineering, Food Technology, Textile Engineering, Nano Technology & science, Power Electronics, Electronics & Communication Engineering, Computational mathematics, Image processing, Civil Engineering, Structural Engineering, Environmental Engineering, VLSI Testing & Low Power VLSI Design etc.
H1075262
This document summarizes an experimental study on the flexural fatigue behavior of carbon/epoxy angle ply laminates. Flexural fatigue tests were conducted on laminate composites with different fiber orientations: [00]4, [±450]4, [±550]4, and [00, 900]4. The tests measured the stiffness degradation of the laminates as a function of the number of load cycles applied. The results showed that stiffness reduced rapidly at first as the top and bottom layers were damaged, then the rate of reduction slowed as a "pivoting effect" limited further damage. Numerical models were able to describe the stiffness degradation curves.
International Journal of Engineering Research and Development
Electrical, Electronics and Computer Engineering,
Information Engineering and Technology,
Mechanical, Industrial and Manufacturing Engineering,
Automation and Mechatronics Engineering,
Material and Chemical Engineering,
Civil and Architecture Engineering,
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Petroleum and Mining Engineering,
Marine and Agriculture engineering,
Aerospace Engineering.
Review on Design and Analysis of Front Bumper
Proper design of front bumper is essential in safeguarding engine bay during low impact collisions. The energy absorption characteristics of bumpers should be good enough to absorb impact energy without causing any damage to internal parts. The current research studies the various analysis conducted on front bumper using numerical and experimental techniques to determine the effect of various composite materials, high strength sheet moulding compounds and reinforced rib on improving energy absorption characteristics of bumper. J Chakravarthi | Dr. Alok Sharma "Review on Design & Analysis of Front Bumper" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-5 | Issue-3 , April 2021, URL: https://www.ijtsrd.com/papers/ijtsrd39989.pdf Paper URL: https://www.ijtsrd.com/engineering/mechanical-engineering/39989/review-on-design-and-analysis-of-front-bumper/j-chakravarthi
Experimental investigation of the crashworthiness performance of laminated co...
This document presents the results of an experimental investigation into the crashworthiness performance of laminated composites made of CPVC pipe and woven carbon fiber mat. Crashworthiness indicators like energy absorption, specific energy absorption, maximum force, mean crushing force, and crushing force efficiency were used to evaluate the performance of test specimens under compression loading. Specimens with increasing numbers of carbon fiber mat laminations were tested and compared to an unreinforced CPVC pipe specimen. Both experimental and finite element analysis results showed that additional carbon fiber laminations led to decreased deformation and increased crushing force efficiency when subjected to the same load, indicating improved crashworthiness performance. The finite element analysis results from ANSYS software agreed with the trends observed in
Axial Crushing of Aluminum Honey Comb Under Dynamic Loading Condition
The document summarizes research on the axial crushing of aluminum honeycomb structures under dynamic loading conditions. Experiments were conducted using both semi-static and dynamic testing methods. Specifically, honeycomb samples measuring 75x75x35mm were tested in a universal testing machine and a drop weight machine. The testing aimed to study the deformation and energy absorption of honeycomb under compressive loads. Finite element analysis was also conducted using LS-Dyna software to simulate honeycomb crushing. The results provide valuable insights into manufacturing materials with high energy absorption capacity.
IRJET- Vibro Acoustic Analysis of Laminated Composite Plate Roof of Car Body
This document discusses a vibro-acoustic analysis of a laminated composite plate roof for a car body. A 3D model of a Maruti Swift car is created using CATIA. An acoustic modal analysis is performed to find the resonance frequencies, which are validated against theoretical calculations. Different materials are considered for the car roof to improve acoustic performance and reduce low frequency resonance amplitudes. The analysis is conducted in ANSYS to study how sound pressure levels inside the vehicle are affected by the roof material and shape. Results show the first resonance mode occurs at 79.864Hz in the X-direction, with maximum sound pressure at the rear of the car air cavity.
Effect of Nanoparticles on E-Glass Fiber Epoxy Resin Composites
In the present work fabrication of composite material(E-Glass Fiber Epoxy Resin +
NANO CaCO3) was carried out and their tensile properties viz tensile strength, tensile
strain(%),young's modulus, energy at maximum load and brihnall hardness number were found.
Specimens of E-Glass Fiber Epoxy Resin) hybrid composites are prepared with four different
compositions of nano-calcium carbonate (CaCO3), viz., 0,3,5 and 7%.Each specimen consisting of
40%GF. The specimens are prepared by hand lay up method.. Tests are conducted on these specimens
to determine the tensile strength, tensile strain, young's modulus energy at maximum load and
hardness number at room temperature using universal testing machine and Brihnell hardness testing
machine. The influence of the nano-CaCO3 content on the mechanical properties tensile of hybrid
composites was studied. It is found that the reinforcing and toughening effects of the E-Glass epoxy
hybrid composites are increased by adding nano-CaCO3.The tensile strength, tensile strain, young’s
modulus and energy at max load of these composites increased nonlinearly with the addition of the
nano-CaCO3
ANALYSIS OF TENSILE BEHAVIOR HYBRID CARBON - JUTE FIBER RENIFORCED EPOXY COMP...
Hybrid composites have unique features that can be used to meet diverse and competing design requirements in
a more cost-effective way than either - advanced or, conventional composites. The Natural-polymer hybrid composites reinforced with carbon fiber and jute with three different orientations - 0°, 30° and 45° using epoxy resin is fabricated by hand lay-up process. The tensile test is carried out to study the tensile behavior of the developed hybrid composite.
A Review on Investigation of Tribological Behavior of Nanocoating for Piston ...
Nanocoating can help to improve performance and life
of automotive engine by reducing the wear between the engine
components. In this research have selected the proper material
for top piston ring and same material are to be selected for
preparation of pin for tribometer testing and material of cylinder
liner tested and fabricated the same material of tribometer disc.
Nanocoating by electroplated Chromium coating and Chromium
nitride using DLC method by PVD coating was done on
specimen pin and piston ring and this material which was used
tribometer testing.
Depleting fossil fuel resources, economic
competitiveness and environmental concerns has compelled to
explore newer avenues to improve efficiency of automotive
engines. Various techniques have been adapted to achieve this
goal.
Static structural and dynamic analysis of cracks in composite materials
This document summarizes a study on analyzing cracks in composite materials using static and dynamic finite element analysis. It discusses:
1) Modeling a cracked and uncracked composite beam in ANSYS and analyzing their stress distributions and natural frequencies under static and dynamic loading. The cracked beam showed higher stresses and lower natural frequencies.
2) Conducting a case study on modeling and analyzing a cracked bicycle crank made of carbon fiber reinforced polymer. The crank was meshed and its stress fields were analyzed to study the effect of cracks on its strength and failure behavior.
3) The study aims to better understand how cracks influence the static and dynamic characteristics of composite materials like beams and crank arms, which is important for
Design of automobile front bumper for collision energy Attenuation
This document presents research on designing an automobile front bumper to better attenuate collision energy. The study aims to reduce passenger and vehicle body damage from collisions. Three materials - ABS plastic, carbon fiber reinforced plastic, and glass fiber reinforced plastic - were modeled and analyzed using CATIA and ANSYS software. Dynamic impact simulations were performed with the bumper striking a fixed support at 10 m/s. Von Mises stress and deformation results from ANSYS were highest for carbon fiber, followed by glass fiber and ABS plastic. A mathematical model was also developed to calculate impact stress, and results closely matched those from ANSYS simulations. In conclusion, composite materials showed better energy absorption during impact testing compared to ABS plastic.
IRJET- Experimental Investigation and Analysis of Glass Fiber Epoxy Reinforce...
This document experimentally investigates and analyzes glass fiber epoxy reinforced with rubber and wood powder composites. Samples were fabricated with different filler concentrations using hand layup. Mechanical tests including tensile, compression, impact, and water absorption were performed based on ASTM standards. Test results found that 20% weight filler content provided the best results for compression and tensile strength. Finite element analysis using ANSYS showed that the glass fiber composite with rubber and wood powders exhibited higher strength, lower deformation and von mises strain compared to the glass fiber reinforced plastic under the same loads. It was concluded that the reinforced composite has improved mechanical properties and reduced weight compared to glass fiber reinforced plastic.
Impact Analysis and Material Optimization of a Front Bumper in a Heavy Vehicle
This document discusses the analysis and material optimization of a front bumper for a heavy vehicle. It begins with an introduction to bumpers and their purpose in automobiles. It then reviews literature on bumper design and materials. The document describes the modeling of different bumper designs in CREO software, including a steel bumper, composite bumper, and honeycomb-hybrid bumper. A finite element analysis is performed on the different designs in ANSYS to analyze deformation and weight. The results show that the composite bumper has a 25.5% reduction in deformation compared to steel, and the honeycomb-hybrid bumper has the lowest weight. The conclusion is that analyzing bumpers can help increase safety by evaluating different materials and
IRJET-A New Approach of using Foundry Sand for Enhancing Concrete Mechanical...
This document discusses the analysis and material optimization of a front bumper for a heavy vehicle. It begins with an introduction to bumpers and their purpose in automobiles. It then reviews literature on bumper design and materials. The document describes the modeling of different bumper designs in CREO software, including a steel bumper, composite bumper, and honeycomb-hybrid bumper. A finite element analysis is performed on the different designs in ANSYS to analyze deformation and weight. The results show that the composite bumper has a 25.5% reduction in deformation compared to steel, and the honeycomb-hybrid bumper has the lowest weight. The conclusion is that analyzing bumpers can help increase safety by evaluating different materials and
COMPARATIVE AND EXPERIMENTAL INVESTIGATION OF GLASS FIBER REINFORCED WITH JUT...
The document discusses an investigation into composite materials reinforced with glass fibers, jute fibers, and silicon carbide powder. Researchers looked at the mechanical properties of these composites under tensile, compression, and impact loading. They found that hand layup fabrication resulted in better performance for natural fiber reinforcement with glass fibers. Silicon carbide was shown to be an excellent material for absorbing and carrying heavy loads. The document provides details on the materials and testing methods used in the study.
Investigation on 3-body abrasive behaviour of glass fiber and ramie fiber rei...
This document summarizes an investigation into the three-body abrasive wear behavior of glass fiber and ramie fiber reinforced epoxy hybrid composites. Hybrid composites with varying proportions of glass and ramie fibers were manufactured using hand layup and tested for three-body abrasive wear under different parameters. The optimal parameters that resulted in the lowest wear rate were found to be A3 (30% ramie), B1 (580g load), and C2 (2000m sliding distance). Sliding distance was the most significant influencing factor on wear, followed by load, while fiber proportion was the least influencing. SEM analysis showed micro-plucking, micro-cutting and micro-cracks on worn surfaces. The Ra10
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Effect of lamination angle on maximum deflection of simply supported composit...
Effect of lamination angle on maximum deflection of simply supported composit...
[IJET-V2I5P1] Authors: Muthuraj, Ravi kumar.M, Keerthiprasad.K.S
[IJET-V2I5P1] Authors: Muthuraj, Ravi kumar.M, Keerthiprasad.K.S
International Journal of Engineering Research and Development
International Journal of Engineering Research and Development
Experimental investigation of the crashworthiness performance of laminated co...
Experimental investigation of the crashworthiness performance of laminated co...
Axial Crushing of Aluminum Honey Comb Under Dynamic Loading Condition
Axial Crushing of Aluminum Honey Comb Under Dynamic Loading Condition
IRJET- Vibro Acoustic Analysis of Laminated Composite Plate Roof of Car Body
IRJET- Vibro Acoustic Analysis of Laminated Composite Plate Roof of Car Body
Effect of Nanoparticles on E-Glass Fiber Epoxy Resin Composites
Effect of Nanoparticles on E-Glass Fiber Epoxy Resin Composites
ANALYSIS OF TENSILE BEHAVIOR HYBRID CARBON - JUTE FIBER RENIFORCED EPOXY COMP...
ANALYSIS OF TENSILE BEHAVIOR HYBRID CARBON - JUTE FIBER RENIFORCED EPOXY COMP...
A Review on Investigation of Tribological Behavior of Nanocoating for Piston ...
A Review on Investigation of Tribological Behavior of Nanocoating for Piston ...
Static structural and dynamic analysis of cracks in composite materials
Static structural and dynamic analysis of cracks in composite materials
Design of automobile front bumper for collision energy Attenuation
Design of automobile front bumper for collision energy Attenuation
IRJET- Experimental Investigation and Analysis of Glass Fiber Epoxy Reinforce...
IRJET- Experimental Investigation and Analysis of Glass Fiber Epoxy Reinforce...
Impact Analysis and Material Optimization of a Front Bumper in a Heavy Vehicle
Impact Analysis and Material Optimization of a Front Bumper in a Heavy Vehicle
IRJET-A New Approach of using Foundry Sand for Enhancing Concrete Mechanical...
IRJET-A New Approach of using Foundry Sand for Enhancing Concrete Mechanical...
COMPARATIVE AND EXPERIMENTAL INVESTIGATION OF GLASS FIBER REINFORCED WITH JUT...
COMPARATIVE AND EXPERIMENTAL INVESTIGATION OF GLASS FIBER REINFORCED WITH JUT...
Investigation on 3-body abrasive behaviour of glass fiber and ramie fiber rei...
Investigation on 3-body abrasive behaviour of glass fiber and ramie fiber rei...
Design of a Multi-Material Body Structure with High Crashworthiness
- 1. Setup An experimental study was designed to compare the 3D fabric impact response against the usual woven fiberglass cloth within three different configurations including , 4 layer, 7 layer and 16 layer. Impact tests Were conducted using a Charpy Impact test Machine, fitted with a computer-controlled dynamic load cell , a LVDT and high speed camera. 0 1 2 3 4 5 6 7 8 9 10 16 Layer 7 Layer 4 Layer 3D Fabric NormalizedImpactEnergyAbsorption(1/kg) Specimen with Different Configurations Energy Absorption for Different Specimens Results The composites containing the 3D fabric exhibited the highest energy absorption capacity. This is a crucial for enhancing the crashworthiness of structure. The impact shock is totally damped by crushing the vertical fibers of 3D fabric; thus, no dimple or damage becomes evident on the other side of the 3D composite (i.e., the passenger side). Impact test setup Charpy impact machine High speed camera DAQ No sign of damage on the passenger side! crushing of the vertical fibers totally damped The impact energy 3D Fabric after Impact Test 3D fabric filled with foam Experimental Study Enhanced Vehicle Crashworthiness with Innovative Multi-Material Body Structure Shahin Shadlou, Zohre Asaee & Farid Taheri Project OverviewThe National Highway Traffic Safety Administration’s primary mission is to “save lives, prevent injuries, and reduce economic costs due to road traffic crashes.” A lot of new technologies have been introduced to lower the number of collisions. Examples are the Electronic Stability Program (ESP), Collision Warning System, Anti- lock Breaking System (ABS), etc. Notwithstanding all efforts for inhibiting car crashes, the statistics reported by the Transport Canada indicate that the number of victims is still large, which implies that irrespective of new technologies, many fall victim to collisions. 0 5000 10000 15000 20000 25000 30000 1990 2009 Numberofvictimsincar crashes serious Injuries Fatalities Therefore, enhancing vehicle crashworthiness is essential for protecting passengers’ lives while maintaining or even reducing the vehicle’s weight; thereby, improving the energy security and addressing the climate change by decreasing emissions of carbon dioxide (CO2). The main Goals of this project are to introduce of an innovative multi-material configuration for vehicle body structure to: Increase the Crashworthiness & Reduce the Weight 3D Fabric What is the new material? The proposed material is a laminate of two or three thin magnesium sheets bonded with layers of 3D fabrics and conventional fiberglass. Why this combination? Each layer has its own unique properties which in a way contributes to the final desired mechanical response. Magnesium ALLOYS The lightest structural metallic alloys. High strength-to-weight ratio. Have been used in several components of modern cars. Fiber-glass Reinforced polymers Lightweight, excellent specific strength, and robust. More ductile and less expensive that carbon composites. Have been extensively used in various industries. Introduction 3D Fabric A recently developed fabric, consisting of two bi- directional woven fabrics, knitted together by vertical braided glass fiber pillars Outstanding impact resistance owing to the unique configuration Under an impact event, the vertical fibers gradually crash and damp a great amount of energy Vertical fibers . 3D Fabric Magnesium Magnesium Fiberglass Fiberglass Proposed Material Layup Computer simulations were performed, using the finite element method, to predict the impact response of specimens. By using computational simulations, configuration related parameters, such as the number and order of the layers thickness of the magnesium sheet, and 3D fabric, etc. could be optimized based on the desired properties; thus, saving experimental costs and time. Simulation of Impact Test Simulation The developed multi-material structure is able to bear a significant amount of impact energy-to-weight and is effectively capable of damping the impact energy and thus protecting passengers’ lives. Moreover, its light weight is in line with the energy saving and CO2 reducing initiatives and policies. In the next step, we will optimize the configuration and address the issues related to mass production of this novel composite material. Conclusions & Future Work ACKNOWLEDGMENTS Financial support for this project was provided by AUTO21 and Meridian Lightweight Technologies.