Collision performance of square tubes with diaphragms

被引：47

作者：

Gao, Guangjun ^{[1
]}

Dong, Haipeng ^{[1
]}

Tian, Hongqi ^{[1
]}

机构：

[1] Cent South Univ, Minist Educ, Key Lab Traff Safety Track, Changsha 410075, Hunan, Peoples R China

来源：

THIN-WALLED STRUCTURES | 2014年 / 80卷

关键词：

Energy absorption; Square tube; Diaphragm; Crashworthiness; Process errors; Strain rate effects; ENERGY-ABSORPTION; SIMULATION;

D O I：

10.1016/j.tws.2014.03.007

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

The energy absorption responses of conventional tubes and tubes with diaphragms are analysed here by means of finite element simulation. Numerical results show that tubes with diaphragms exhibit a relatively stable crushing process. The effect of imperfect energy absorption responses is also analysed, including the top shape of tubes and oblique loading. The strain rate affects the dynamic response of tubes with diaphragms. Four prototypes of these tubes were constructed and tested; however, sizeable differences were obtained between experimental results and the results of numerical simulation of the ideal structure in terms of process errors. (C) 2014 Elsevier Ltd. All rights reserved.

引用

页码：167 / 177

页数：11

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