Transactions of Materials and Heat Treatment

Title：Crashworthiness research of stamping process

Authors： Yuan Zhensong Hu Zhangping

Unit： Hunan University

KeyWords： stamping effect springback crash hat section beam

ClassificationCode：TG386；U461.91

year,vol(issue):pagenumber：2015,40(12):43-49

Abstract：

After the parts were stamped, their material parameters and geometry sizes were changed, which directly affected the crash simulation accuracy. For hat section beam, the stamping effects on thickness thinning, residual stress and equivalent plastic strain were mapped to the collision analysis model, and influences of the above stamping effects and springback on collision analysis were studied. The results show that thickness thinning and equivalent plastic strain have great influences on the deformation and peak collision force, and residual stress and thickness thinning have great influences on energy absorption. The springback leads to less peak collision force and energy absorption, while, the stamping effect leads to less peak collision force and more energy absorption. Compared with the ideal model, the peak collision force and energy absorption reduce over 10% with the consideration of both stamping effect and springback.

Funds：

国家自然科学基金资助项目 (11202075)；国家“863”高技术资助项目(2012AA111802)

作者简介：袁振松（1989-），男，硕士研究生

Reference：

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