Research Article
Bending Collapse of Thin-Walled Multi-Cell Square Tubes
@INPROCEEDINGS{10.4108/eai.8-11-2023.2345843, author={Syarifah Fairuza and Sigit P. Sentosa and Annisa Jusuf and Leonardo Gunawan}, title={Bending Collapse of Thin-Walled Multi-Cell Square Tubes }, proceedings={Proceedings of the 2nd International Conference on Aviation Industry, Education, and Regulation, AVINER 2023, 8-9 November 2023, Jakarta, Indonesia}, publisher={EAI}, proceedings_a={AVINER}, year={2024}, month={5}, keywords={bending collapse three-point bending multi-cell energy absorption}, doi={10.4108/eai.8-11-2023.2345843} }- Syarifah Fairuza
Sigit P. Sentosa
Annisa Jusuf
Leonardo Gunawan
Year: 2024
Bending Collapse of Thin-Walled Multi-Cell Square Tubes
AVINER
EAI
DOI: 10.4108/eai.8-11-2023.2345843
Abstract
The side impact collision is the second highest fatality in four-wheeled vehicle accidents after the frontal impact collision. Side collision can result in serious injury to both passenger and driver. The vehicle structure that protects passengers from side collisions is B-Pillar structure, this structure will experience bending crush and absorb collision energy. This study aims to understand the bending collapse behavior of the B-Pillar when given an impact load. There are 4 types of platforms analyzed in this study; single-cell, multi-cell, web-cell and flange-cell. Web-cells are cells that are placed vertically on the cross-section of thin-walled beams, while the flange-cells are cells that are placed transversely on the cross-section of the beams. Aluminum alloy 6061-T6 was chosen for its strength and ease of manufacture. In this study, three-point bending modeling will be carried out, considering the value of punch-displacement, moment-rotation, energy absorption, and specific energy absorption using LS-Dyna. The position of the cell placement is very influential in the study of three-point bending. This is proven by web 3 cells and flange 3 cells which have the same mass and number of cells but have different energy absorption, which are 491.1 J/kg for web 3 cells and 618.1 J/kg for flange 3 cells. Of the four types of platforms studied, those with the highest peak force are multi-cell, followed by web-cell, flange-cell and single-cell.