Energy-absorbing structures based on staggered composite cutting rings: Crashworthiness and railway applications

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成果类型：

期刊论文

作者：

Wang, Hao;Xie, Suchao;Feng, Zhejun;Li, Xiang;Zhou, Hui

通讯作者：

Xie, SC

作者机构：

[Xie, SC; Xie, Suchao; Feng, Zhejun; Li, Xiang; Wang, Hao] Cent South Univ, Sch Traff & Transportat Engn, Key Lab Traff Safety Track, Minist Educ, Changsha 410075, Peoples R China.

[Xie, Suchao; Feng, Zhejun; Li, Xiang; Wang, Hao] Joint Int Res Lab Key Technol Rail Traff Safety, Changsha, Peoples R China.

[Xie, Suchao; Feng, Zhejun; Li, Xiang; Wang, Hao] Natl & Local Joint Engn Res Ctr Safety Technol Rai, Changsha, Peoples R China.

[Zhou, Hui] Cent South Univ Forestry & Technol, Sch Logist & Transportat, Changsha, Peoples R China.

通讯机构：

[Xie, SC ] C

Cent South Univ, Sch Traff & Transportat Engn, Key Lab Traff Safety Track, Minist Educ, Changsha 410075, Peoples R China.

语种：

英文

关键词：

Mechanical properties;composite structures;energy absorption;crashworthiness analyses;railway vehicles

期刊：

Mechanics Based Design of Structures and Machines

ISSN：

1539-7734

年：

2024

卷：

期：

页码：

7108-7130

DOI：

10.1080/15397734.2025.2498087

基金类别：

Central South University, China; National Natural Science Foundation of China [52202455]; Science and Technology Innovation Program of Hunan Province [2024RC1019]; Natural Science Foundation of Hunan Province [2023JJ31015]; China Scholarship Council [202406370213]; Shenghua Yu-ying Talents Program of Central South University

机构署名：

本校为其他机构

院系归属：

交通运输与物流学院

摘要：

The aim of this study was to develop a high-performance energy-absorbing device with both high energy absorption and smooth energy dissipation. Drawing upon the concept of exploiting temporal misalignment of impact force, a novel composite energy-absorbing device with staggered combination of cutting rings (CECR) was investigated. Dynamic impact tests were conducted using a drop hammer system, and a finite element model of CECR was built to study its application in railway vehicles. The study showed that the cutting rings fail into filamentous fine circles under impact loads, exhibiting high m...

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