Transactions of Materials and Heat Treatment

Title：Influence of reinforcing ribs on impact resistance for thin-walled structural parts

Authors： Wang Hongding Qin Ganlin Liu Hong Yang Wenli

Unit： Lanzhou Jiaotong University

KeyWords： thin-walled structural parts impact resistance performance stiffener reinforcing rib collision force

ClassificationCode：TP603

year,vol(issue):pagenumber：2021,46(11):176-182

Abstract：

For thin-walled structural parts, different numbers of rib were added to the thin-walled structural parts, and the maximum total deformation, the maximum total stress and the minimum safety factor of thin-walled structural parts with different numbers of rib collided along axial, oblique and radial directions were analyzed and studied by the single-factor variable method under the same volume, length and thickness of the thin-walled structural parts. Then, a finite element model was established to perform numerical simulation calculation by Workbench module of ANSYS, and the thin-wall structure parts with ribs were optimized and designed. Furthermore, the impact resistance performance evaluation indexes of the maximum peak force, the average peak impact force and the efficiency of impact force for the optimized thin-wall structure parts were calculated, and the impact resistance performance of the optimized thin-wall structure parts was analyzed. Through the research and analysis on different numbers of rib, it is found that it has little effect on the impact resistance performance of the thin-walled structure parts in the axial collision, but the impact resistance performances in the oblique and radial directions are significantly improved.

Funds：

国家自然科学基金资助项目(51565025)；甘肃省自然科学基金资助项目(1606RJZA013)；兰州交通大学青年基金资助项目(2014018)

作者简介：王鸿鼎（1983-），男，博士，副教授，E-mail：wanghd@lzjtu.edu.cn；通信作者：秦甘霖（1996-），男，硕士，E-mail：qinganlin2020@163.com

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