An engineering approach to improve the accuracy of one-step simulation for vehicle forming-to-crashworthiness integrated evaluation

作     者：WANG WuRong GUO BiMeng WEI XiCheng WANG DaZhi DU HanBin 

作者机构：School of Materials Science and EngineeringShanghai UniversityShanghai 200072China Technical CenterSAIC MotorShanghai 201804China 

基　　金：supported from the National Natural Science Foundation of China (Grant No. 51005144) the Innovation Program of Shanghai Municipal Education Commission and Shanghai Automotive Industry Science and Technology Development Foundation (Grant No. 1009) 

出 版 物：《Science China(Technological Sciences)》 (中国科学（技术科学英文版）)

年 卷 期：2012年第55卷第6期

页      码：1596-1602页

摘      要：To improve the accuracy of the vehicle crashworthiness simulation, it is necessary as well as important to integrate the valid forming effects of key parts. It has been agreed by many that one-step simulation results should be used only as a qualitative trend of the part but not as an engineering result for further structural analysis, especially for a relatively complex part. The study shows that it is inaccurate to analyze the forming effects with one-step simulation based on the geometry of the final part through comparison with the incremental simulation and verification with the actual part, whether in thickness or in plastic strain. However, incremental simulation is very time consuming and infeasible in the early stage of vehicle design due to lack- ing of forming tools and process parameters. An engineering approach is proposed to meet the requirement of accuracy as well as the time efficiency, where one-step simulation is conducted based on the geometry of the transformed part instead of the fi- nN part. The geometry of the transformed part is generated by simple die design engineering and proves to offer much more accuracy than the one-step simulation based on the final part geometry.

主 题 词：forming-to-crashworthiness inverse one-step incremental method stamping history 

学科分类：08[工学] 080203[080203] 081402[081402] 0802[工学-机械学] 0814[工学-地质类] 

核心收录：

D　O　I：10.1007/s11431-012-4793-x

馆 藏 号：203503837...