Influence of strengthening form of CFRP on transverse impact performance of steel tube

被引：0
|
作者：
Zhuang W.-M. [1 ]
Chen S. [1 ]
Wu D. [1 ]
机构：
[1] State Key Laboratory of Automotive Simulation and Control, Jilin University, Changchun
来源：
Jilin Daxue Xuebao (Gongxueban)/Journal of Jilin University (Engineering and Technology Edition) | 2022年 / 52卷 / 04期
关键词：
Carbon fiber reinforced polymer; Impact resistance; Strengthened steel tube; Vehicle engineering;
D O I：
10.13229/j.cnki.jdxbgxb20200939
中图分类号：
学科分类号：
摘要：
In view of the fact that carbon fiber reinforced polymer(CFRP) partially wrapped steel tube can realize further lightweight on the premise of improving the performance of steel tube, the transverse impact simulation of CFRP reinforced steel tube was carried out, and the influence of strengthening form and size of CFRP wrapped steel tube on the transverse impact performance of steel tube was obtained. Based on the Hashin composite failure criterion and Ductile metal failure criterion, the simulation model of the drop hammer transverse impact of CFRP fully wrapped steel tube was established, and the validity of the model was verified. The relationship between the size of CFRP and the impact strength of steel tube was studied when CFRP was pasted axially on the steel tube surface, circumferentially on the impact side and circumferentially on the back of the impact side. The transverse impact simulation of drop hammer was carried out and the distribution of steel tube damage under impact was studied, the maximum displacement of the strengthened steel tube and the energy absorption of CFRP were compared under different bonding lengths. The results show that the strengthening influence of CFRP axial bonding size is more obvious;the impact resistance of the steel tube strengthened by CFRP is basically the same as that of the steel tube fully wrapped by CFRP, when the length of CFRP is pasted axially half of the span and the full length of the steel tube circumference or the length of CFRP is pasted axially 87.5% of the circumference and full length of span. © 2022, Jilin University Press. All right reserved.
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页码：819 / 828
页数：9
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