Crashworthiness of sandwich cylinder filled with double-arrowed auxetic structures under axial impact loading

被引：16

作者：

Sun, Huiming ^{[1
]}

Ge, Chengqiang ^{[1
]}

Gao, Qiang ^{[1
,2
,3
]}

Qiu, Na ^{[4
]}

Wang, Liangmo ^{[1
,5
]}

机构：

[1] Nanjing Univ Sci & Technol, Dept Automot Engn, Sch Mech Engn, Nanjing, Jiangsu, Peoples R China

[2] Univ Michigan, Dept Mech Engn & Appl Mech, Shatin, Hong Kong, Peoples R China

[3] Southeast Univ, Sch Mech Engn, Nanjing, Jiangsu, Peoples R China

[4] Hainan Univ, Coll Mech & Elect Engn, Haikou, Hainan, Peoples R China

[5] Wanjiang Univ Technol, Sch Mech Engn, Dept Automot Engn, Maanshan, Anhui, Peoples R China

来源：

INTERNATIONAL JOURNAL OF CRASHWORTHINESS | 2022年 / 27卷 / 05期

基金：

中国国家自然科学基金;

关键词：

Energy absorption characteristics; auxetic structures; negative Poisson's ratio; axial impact; THIN-WALLED TUBES; ENERGY-ABSORPTION; THEORETICAL PREDICTION; CRUSHING ANALYSIS; ELLIPSE TUBES; GRADED FOAM; OPTIMIZATION; DESIGN; SQUARE;

D O I：

10.1080/13588265.2021.1947071

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Bioinspired structure/material has attracted attentions in engineering fields. In this article, a novel sandwich cylinder inspired by shore horsetail is proposed by introducing the double-arrowed auxetic filler. The energy absorption characteristics of the sandwich cylinder are analysed comprehensively and compared to the conventional structure to show its superiority. The effects of the geometric parameters on the energy absorption characteristics are also discussed. It is found that the number of layers and cells for auxetic structures, thickness of beams and thin-walled tubes, and the radius of the inner tube have great effects on the crushing force, energy absorption, initial peak force and specific energy absorption. The sandwich cylinder will be a great energy absorber after designing.

引用

页码：1383 / 1392

页数：10

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