基于COPRAS评价方法的薄壁梁拼焊板多工况耐撞性能研究

A Research on the Multi-condition Crashworthiness of TWB-made Thin-walled Beam Base on COPRAS Method

采用COPRAS评价方法,评价正撞和斜撞工况下不同材料与厚度组合薄壁梁拼焊板的综合耐撞性能。结果表明:该评价方法不仅能合理、准确、高效地评价薄壁梁拼焊板综合耐撞性能,还能对拼焊板耐撞性能的优化提供指导,具有较高的工程实用性。

Complex proportional assessment （ COPRAS） method is adopted to evaluate the overall crashworthinessperformance of tailor welded blank （TWB） made thin-walled beam with different combinations of materialand thickness under both head-on and oblique crashes. The results show that the assessment method adopted can notonly rationally, accurately and efficiently evaluate the overall crashworthiness of TWB-made thin-walled beam butalso provide guidance for its optimization, having a high engineering practicality.