A comparative study on the windowed and multi-cell square tubes under axial and oblique loading

被引：84

作者：

Song, Jie ^{[1
]}

Guo, Fenglin ^{[2
]}

机构：

[1] Nanyang Technol Univ, Sch Mech & Aerosp Engn, Singapore 639798, Singapore

[2] Shanghai Jiao Tong Univ, Sch Naval Architecture Ocean & Civil Engn, Shanghai 200240, Peoples R China

来源：

THIN-WALLED STRUCTURES | 2013年 / 66卷

关键词：

Energy absorption; Axial loading; Oblique loading; Windowed tubes; Multi-cell tubes; THIN-WALLED STRUCTURES; ALUMINUM TUBES; NUMERICAL-SIMULATION; ENERGY-ABSORPTION; EXTRUSIONS; TRANSITION; BEHAVIOR; COLLAPSE;

D O I：

10.1016/j.tws.2013.02.002

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

The collapse of thin-walled tubes under axial and oblique loading is frequently encountered in real crash events. The windowing and multi-cell methods are effective in improving tubes' energy absorbing performance. In this paper, a comparative study on the performance of windowed and multi-cell square tubes of the same weight under axial and oblique loading is conducted numerically. The results show that the multi-cell tube can achieve higher mean crushing force than the windowed tube but the windowed tube has lower initial peak force. The effectiveness of both methods reduces as the load angle increases. Moreover, the multi-cell and windowed tubes may have worse performance than the conventional tube if the former two collapse in global bending and the later in axial mode. (C) 2013 Elsevier Ltd. All rights reserved.

引用

页码：9 / 14

页数：6

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