期刊
THIN-WALLED STRUCTURES
卷 49, 期 1, 页码 1-12出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.tws.2010.07.002
关键词
Crush tube; Energy absorption; Mechanics of crush; Multi-corner tube; Quasi-static crush
资金
- US Department of Energy [DE-FC26-06NT42755]
Quasi-static nonlinear finite element simulations are performed to study the energy absorption characteristics of axially crushed thin-walled aluminum tubes with different multi-cell, multi-corner configurations. By considering the kinematically consistent representation of plastic collapse as observed in the crush simulations, an analytical formula for the mean crush force is derived using the super folding element theory. In this model, the isotropic material is treated as rigid-perfectly plastic and the total internal energy is calculated by considering both bending and membrane deformation during the folding process. The simulation results show a strong correlation between the cross-sectional geometry and the crush response of the tubes. The analytical predictions for the mean crush force are compared with the FE results as well as other analytical models reported in the literature. (C) 2010 Elsevier Ltd. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据