ENERGY ABSORPTION OF ORIGAMI CRASH BOX: NUMERICAL SIMULATION AND THEORETICAL ANALYSIS

被引：0

作者：

Shi, Mengyan ^{[1
]}

Ma, Jiayao ^{[1
]}

Chen, Yan ^{[1
]}

You, Zhong ^{[2
]}

机构：

[1] Tianjin Univ, Sch Mech Engn, Tianjin 300072, Peoples R China

[2] Univ Oxford, Dept Engn Sci, Oxford OX1 3PJ, England

来源：

PROCEEDINGS OF THE ASME INTERNATIONAL DESIGN ENGINEERING TECHNICAL CONFERENCES AND COMPUTERS AND INFORMATION IN ENGINEERING CONFERENCE, 2018, VOL 5B | 2018年

基金：

中国国家自然科学基金;

关键词：

thin-walled tubes; crash box pattern; axial crushing; energy absorption; THIN-WALLED TUBES; AXIAL COLLAPSE;

D O I：

暂无

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

Thin-walled tubes as energy absorption devices are widely in use for their low cost and high manufacturability. Employing origami technique on a tube enables induction of a predetermined failure mode so as to improve its energy absorption efficiency Here we study the energy absorption of a hexagonal tubular device named the origami crash box numerically and theoretically. Numerical simulations of the quasi-static axial crushing show that the pattern triggers a diamond-shaped mode, leading to a substantial increase in energy absorption and reduction in initial peak force. The effects of geometric parameters on the performance of the origami crash box are also investigated through a parametric study. Furthermore, a theoretical study on the deformation mode and energy absorption of the origami crash box is carried out, and a good match with numerical results is obtained. The origami crash box shows great promise in the design of energy absorption devices.

引用

页数：11

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