TY  - JOUR
PY  - 2023//
TI  - Multi-cell designs for improving crashworthiness of metal tube under the axial crushing load
JO  - International journal of crashworthiness
A1  - Yang, Hongyuan
A1  - Ren, Yiru
A1  - Yan, Lingbo
SP  - 365
EP  - 377
VL  - 28
IS  - 3
N2  - In this paper, a multi-cell design method with built-in stiffeners is proposed to improve the crashworthiness of metal circular tubes. In the study, multi-cell circular tubes with three different stiffeners (Line, Waved, Polyline) were subjected to compression tests under quasi-static load. The finite element model of the metal circular tube was validated by ABAQUS/EXPLICIT, and the geometry of the stiffener was designed on this basis. The results showed that the energy absorption of the multi-cell tube was significantly better than that of the initial tube. Further, 'Waved' and 'Polyline' are more conducive to improving the crashworthiness of the multi-cell tube from the geometric design of the stiffeners. Through the analysis of load-displacement responses and crashworthiness indexs, it was found that the more the number of 'Waved' or 'Polyline' (from 2 to 8), the better the energy absorption of the multi-cell tubes and the smaller the load fluctuation. In addition the effect of the number of stiffeners on energy absorption was also revealed.<p />  <p>Language: en</p>
LA  - en
SN  - 1358-8265
UR  - http://dx.doi.org/10.1080/13588265.2022.2076637
ID  - ref1
ER  -