Analyzing Effects of damping materials on automotive bumper beam assembly under different loading conditions / Dil Jan

By: Jan, DilContributor(s): Supervisor : Dr. Shahid Ikramullah ButtMaterial type: TextTextIslamabad : SMME- NUST; 2023Description: 84p. Soft Copy 30cmSubject(s): MS Design and Manufacturing EngineeringDDC classification: 670 Online resources: Click here to access online Summary: An automotive component created to absorb and disperse the force of crashes is known as a bumper beam assembly. The bumper beam assembly, which can be found in the front or back of a car, is made up of a number of components, such as the bumper cover, the energy absorber, and the beam itself. The beam, which is made of high-strength materials like steel, aluminum, or composite materials, is the main element in charge of dispersing the impact of a collision. Over time, bumper beam assemblies have seen major design changes as the emphasis shifted from keeping the assembly's ability to absorb and distribute collision damage to minimizing its weight. It is now possible to manufacture bumper beams that are lighter than their heavier counterparts while still being just as effective because to developments in manufacturing and material science. The bumper beam assembly is intended to protect or lessen damage to the front or rear of the vehicle during low or high-velocity impacts by absorbing the maximum amount of impact energy. The objective of ongoing research and development in this field is to design bumper beam assemblies that are lighter and more efficient in order to lessen the severity of injuries in the case of a collision. As a shock-absorbing assembly, the bumper beam enhances crashworthiness. To lessen the losses during a crash collision, energy-absorbing materials are ready to be introduced between bumper beam assemblies in this research work. The materials are composites made of polymer blends with varying weight percentages of the various polymer compositions. To minimize losses during impact collisions, the main goal is to incorporate energy-absorbing materials between bumper beam assemblies. For the purpose of improving the design of the assembly, tensile and impact tests on four material blends have been conducted. To choose the optimum material based on impact strength, computational and experimental Charpy impact tests were run. The results of the study using Finite Element Methods (FEA) are in fair agreement with those from the experiments. Based on the impact strength and energy absorption capabilities of the four created blends, the PP/EPDM-50/50 blend Compatible with Maleic Anhydride was the superior substitute when compared to the other blends to be inserted between bumper beam assemblies. The findings show that as the EPDM content in PP rises, both energyabsorbing capacity and impact strength significantly increase.
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An automotive component created to absorb and disperse the force of crashes is known as a
bumper beam assembly. The bumper beam assembly, which can be found in the front or back of
a car, is made up of a number of components, such as the bumper cover, the energy absorber, and
the beam itself. The beam, which is made of high-strength materials like steel, aluminum, or
composite materials, is the main element in charge of dispersing the impact of a collision. Over
time, bumper beam assemblies have seen major design changes as the emphasis shifted from
keeping the assembly's ability to absorb and distribute collision damage to minimizing its
weight. It is now possible to manufacture bumper beams that are lighter than their heavier
counterparts while still being just as effective because to developments in manufacturing and
material science. The bumper beam assembly is intended to protect or lessen damage to the front
or rear of the vehicle during low or high-velocity impacts by absorbing the maximum amount of
impact energy. The objective of ongoing research and development in this field is to design
bumper beam assemblies that are lighter and more efficient in order to lessen the severity of
injuries in the case of a collision. As a shock-absorbing assembly, the bumper beam enhances
crashworthiness. To lessen the losses during a crash collision, energy-absorbing materials are
ready to be introduced between bumper beam assemblies in this research work. The materials are
composites made of polymer blends with varying weight percentages of the various polymer
compositions. To minimize losses during impact collisions, the main goal is to incorporate
energy-absorbing materials between bumper beam assemblies. For the purpose of improving the
design of the assembly, tensile and impact tests on four material blends have been conducted. To
choose the optimum material based on impact strength, computational and experimental Charpy
impact tests were run. The results of the study using Finite Element Methods (FEA) are in fair
agreement with those from the experiments. Based on the impact strength and energy absorption
capabilities of the four created blends, the PP/EPDM-50/50 blend Compatible with Maleic
Anhydride was the superior substitute when compared to the other blends to be inserted between
bumper beam assemblies. The findings show that as the EPDM content in PP rises, both energyabsorbing capacity and impact strength significantly increase.

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