Crashworthiness Analysis of Bionic Microcircular Structures for Vehicle Crash Boxes

被引：5

作者：

Bai Z. ^{[1
]}

Tan W. ^{[1
]}

Zhang L. ^{[1
]}

Zhou C. ^{[1
]}

机构：

[1] The State Key Laboratory of Advanced Design and Manufacturing for Vehicle Body, Hunan University, Changsha

来源：

Zhongguo Jixie Gongcheng/China Mechanical Engineering | 2019年 / 30卷 / 11期

关键词：

Bionic; Crash box; Crashworthiness; Crushing test; Microcircular structure;

D O I：

10.3969/j.issn.1004-132X.2019.11.001

中图分类号：

学科分类号：

摘要：

Aiming to improve the crashworthiness of the vehicle crash boxes, a kind of bionic microcircular structure(BMS) was studied, which was inspired by the microstructures of the beetle's elytra that might be applied to the structure design of the vehicle crash boxes. The finite element models of BMS were established, and the energy absorption characteristics of BMS and traditional rib structure(TRS) were compared and analyzed. Based on the simplified super folding element(SSFE) theory, the theoretical solutions of the average crushing forces for BMS were derived under axial loads. The research results show that compared with TRS, the energy absorption efficiency of TRS is increased more than 32.20%, and the theoretical solutions agree well with the test results. © 2019, China Mechanical Engineering Magazine Office. All right reserved.

引用

页码：1261 / 1267

页数：6

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