中国机械工程2011，Vol.22Issue(10)：1226-1231,6.
基于汽车碰撞仿真的实体单元焊点模拟方法研究
Spot Weld Simulation Using Solid Element Assemblies Based on Crashworthiness of Automotives
摘要
Abstract
Several commonly used methods of spot weld simulation were summarized and a new solid spot weld elements model was proposed, according to the efficiency and simulation accuracy of the spot weld elements in vehicle crash model. Spot weld elements using solid element assemblies and beam elements were built in detail and their accuracy was systematically compared, based on the crash tests of thin-walled rail. And the most accurate results were gained by using HEX8 elements. The whole car simulation analysis of crashworthiness using spot weld failure parameters obtained by specimen test and the new HEX 8 elements model gave more accurate results. The vehicle tests demonstrated that this solid elements assemblies spot weld model has higher precision and stronger project practicability.关键词
焊点/实体单元/碰撞/部件试验/失效Key words
spot weld/ solid element assembly/ crashworthiness/ specimen test/ failure分类
交通工程引用本文复制引用
谢斌,成艾国,陈涛,董立强..基于汽车碰撞仿真的实体单元焊点模拟方法研究[J].中国机械工程,2011,22(10):1226-1231,6.基金项目
教育部长江学者和创新团队发展计划资助项目(531105050037) （531105050037）
湖南大学汽车车身先进设计制造国家重点实验室自主课题资助项目(60870002) （60870002）
上海市数字化汽车车身工程重点实验室开放课题基金资助项目(2010-02) （2010-02）
