Proceedings of the 2nd International Conference on Aviation Industry, Education, and Regulation, AVINER 2023, 8-9 November 2023, Jakarta, Indonesia

Research Article

Bending Collapse of Thin-Walled Multi-Cell Square Tubes

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  • @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
Syarifah Fairuza1,*, Sigit P. Sentosa2, Annisa Jusuf2, Leonardo Gunawan2
  • 1: Air Marshal Suryadarma University
  • 2: Institute of Technology Bandung
*Contact email: fairuzalattas@yahoo.com

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.