文献类型： 会议论文

第一作者： Xu, Jianqiu

作者： Xu, Jianqiu ¹ ; Lei, Zhengbao; Lei, Muxi;

作者机构： 1.Engineering Research Center of Catastrophic Prophylaxis and Treatment of Road and Traffic Safety (Changsha University of Science and Technology), Ministry of Education, China

关键词： CST energy absorbing device;Computational mechanics;Constitutive model;Parameters inverse identification

会议名称： International Conference on Mechanic Automation and Control Engineering

主办单位：

页码： 366-369

摘要： In order to solve the inverse identification problem of material dynamic constitutive parameters while cutting the thread, and obtain the parameters which can describe the material dynamic mechanical properties correctly. The MSARS algorithm was adopted in this paper, and by the use of this algorithm, a Johnson-Cook model parameters inverse identification research which used known thread material constitutive model as validation test model was completed. The result showed that the algorithm was able to obtain relatively correct parameters in less iteration, thus proposed a reliable method to obtain the material parameters during the process of finite element simulation, and guarantee the credibility of numerical simulation.

分类号： TP3