Experimental investigation and crashworthiness analysis of 3D printed carbon PA automobile bumper to improve energy absorption by using LS-DYNA-Reference-Cited by-同舟云学术

Experimental investigation and crashworthiness analysis of 3D printed carbon PA automobile bumper to improve energy absorption by using LS-DYNA

Published:2023-06 Issue:6 Volume:15 Page:
ISSN:1687-8132
Container-title:Advances in Mechanical Engineering
language:en
Short-container-title:Advances in Mechanical Engineering

Author:

Yeshanew Eyob Sisay¹²,Ahmed Gulam Mohammed Sayeed¹³,Sinha Devendra Kumar¹³^ORCID,Badruddin Irfan Anjum⁴,Kamangar Sarfaraz⁴,Alarifi Ibrahim M⁵,Hadidi Haitham M⁶

Affiliation:

1. Department of Mechanical Engineering, Program of Mechanical Design and Manufacturing Engineering, School of Mechanical, Chemical and Materials Engineering, ASTU, Adama, Ethiopia

2. Department of Mechanical Engineering, Institute of Technology, University of Gondar, Gondar, Ethiopia

3. Center of Excellence (COE) for Advanced Manufacturing Engineering, Program of Mechanical Design and Manufacturing Engineering, School of Mechanical, Chemical and Materials Engineering, ASTU, Adama, Ethiopia

4. Mechanical Engineering Department, College of Engineering, King Khalid University, Abha, Saudi Arabia

5. Department of Mechanical and Industrial Engineering, College of Engineering, Majmaah University, Al-Majmaah, Riyadh, Saudi Arabia

6. Department of Mechanical Engineering, College of Engineering, Jazan University, Jazan, Saudi Arabia

Abstract

This research work aimed to enhance the crashworthiness of the existing automobile bumper to minimize crash injuries. As per the simulation results the weight of the carbon polyamide-based bumper is reduced in comparison with the existing steel bumper by 9.7 kg or 47.5%, with this reduction in weight 38% increase in fuel economy has been estimated. The energy absorption capability of carbon polyamide bumper is improved from the existing steel and aluminum bumper by 11.15% and 16.3% respectively and with this modification, the impact force is reduced from the existing steel bumper, which has 4.87 kN and aluminum alloy bumper, which has 4.10–1.86 kN. The crashworthiness parameter result analysis showed that the corrugated bumper geometry had a structural energy absorption (SEA), total energy absorption (TEA), and crush force efficiency (CFE) of 103.28 J/kg, 911 J, and 77.99%, which is higher than the hallow bumper geometry of 102.4 J/kg, 847 J, and 65.83% respectively. In addition to that, as the thickness of carbon polyamide bumper reduced from 4 mm to 3.5, 3, and 2.5 mm, deformation increased with a small rate from 13.5 mm to 16.7, 18.52, and 22.04 mm.

Funder

Deanship of Scientific Research at King Khalid University

Publisher

SAGE Publications

Subject

Mechanical Engineering

Link

http://journals.sagepub.com/doi/pdf/10.1177/16878132231181058

Reference56 articles.

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