Crushing and theoretical analysis of multi-cell tube filled with auxetic structure under axial impact loading

Autor:	Qiang Gao, Guodong Yin, Charlie C. L. Wang, Wei-Hsin Liao
Rok vydání:	2022
Předmět:	Mechanics of Materials Mechanical Engineering General Mathematics axial impact loading General Materials Science multi-cell tubes Auxetic structures energy absorption Civil and Structural Engineering
Zdroj:	Gao, Q, Yin, G, Wang, C C L & Liao, W H 2022, ' Crushing and theoretical analysis of multi-cell tube filled with auxetic structure under axial impact loading ', Mechanics of Advanced Materials and Structures . https://doi.org/10.1080/15376494.2022.2111730
ISSN:	1537-6532 1537-6494
DOI:	10.1080/15376494.2022.2111730
Popis:	This paper presents a novel structure of multi-cell tube filled with auxetic structures with the aim of improving the crashworthiness performances. The energy absorbing performances of the multi-cell tubes filled with auxetic structures are investigated by finite element analysis and validated experimentally. Compared with other typical energy absorbers, the multi-cell tubes filled with auxetic structures have better energy absorption performance. A parametric study is performed to analyze the effects of beam thickness, beam angle, and tube thickness on the crashworthiness performances. It is found that the tube and beam thicknesses and beam angles have great effects on the energy absorbing performances. An analytical model is also established to predict the energy absorption of multi-cell tubes filled with auxetic structures under axial impact loadings. The analytical predictions agree well with the numerical simulations indicating the analytical model is accurate to predict the energy absorption performances of the proposed structures.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::00aa33535397ef8b1c827e4cf0611d21 https://doi.org/10.1080/15376494.2022.2111730 Zobrazit plný text záznamu