Energy absorption of thin walled tube filled with gradient auxetic structures-theory and simulation

被引：168

作者：

Gao, Qiang ^{[1
]}

Liao, Wei-Hsin ^{[1
,2
]}

机构：

[1] Chinese Univ Hong Kong, Dept Mech & Automat Engn, Shatin, Hong Kong, Peoples R China

[2] Chinese Univ Hong Kong, Inst Intelligent Design & Mfg, Shatin, Hong Kong, Peoples R China

来源：

INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES | 2021年 / 201卷

关键词：

Auxetic structures; Thin walled tube; Energy absorption; Gradient; MULTIOBJECTIVE CRASHWORTHINESS OPTIMIZATION; CRUSHING ANALYSIS; ELLIPSE TUBES; GRADED FOAM; DESIGN; HONEYCOMB; COMPRESSION; THICKNESS; RESPONSES; BEHAVIOR;

D O I：

10.1016/j.ijmecsci.2021.106475

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

In recent years, auxetic structures have been applied in the energy absorption field due to the unique mechanical properties. Inspired by foam filled structures, this study proposes a thin walled structure filled with double arrowed auxetic structure and investigates the energy absorption characteristics. The gradient configuration is introduced to improve the energy absorption performance. The effects of the gradients on the energy absorption are investigated. A theoretical model is also established to predict the energy absorption to quantify the energy dissipated due to thin walled tubes, gradient auxetic structures and their interactions. The accuracy of the theoretical model to predict the energy absorption characteristics is validated through the numerical simulations.

引用

页数：12

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