Abstract

This work overviews the axial crushing behaviour of tube in absorbing kinetic energy produced due to impact collision. Key insights on crash mechanics of crumple zone are provided to understand the crashworthiness characteristics of crash tubes. Parameters like peak collapse load, energy absorption capacity (EAC) and deformation modes are studied comprehensively to strengthen the understanding in improvement of crashworthiness of these tubes. Failure mechanism and the factors controlling the force displacement behaviour of tubes have been discussed in detail. Further, the role of geometrical modifications and foam filling in tubes to optimise the force displacement profile is explained. Testing equipment and finite element software packages pertaining to investigate the characteristics of tubes and used to analyse their behaviour under crash are also discussed. The overview is concluded with the limitations of current research and future scope of work in this area.

摘要

这项工作概述了管在吸收因冲击碰撞产生的动能时的轴向破碎行为。提供了关于溃缩区碰撞力学的重要见解，以了解防撞管的耐撞特性。全面研究了峰值坍塌载荷、能量吸收能力 (EAC) 和变形模式等参数，以加强对提高这些管子耐撞性的理解。详细讨论了失效机制和控制管的力位移行为的因素。此外，解释了几何修改和管中泡沫填充以优化力位移曲线的作用。还讨论了与调查管的特性有关并用于分析它们在碰撞下的行为的测试设备和有限元软件包。概述总结了该领域当前研究的局限性和未来的工作范围。