Fracture Behavior Characterization of an Advanced High-Strength Steel

摘要：

　　This paper addresses the experimental method for characterizing fracture behavior of AHSS.Using the proposed test approach,the mechanical properties of the material at different tensile strain rates and a variety of stress states are obtained.The experimental data are properly processed,with which a Modified Mohr-Coulomb fracture model is calibrated for fracture simulation and prediction of the material.With the MMC model,the plastic and fracture behavior of the material is analyzed via simulation at material level by using the explicit finite element code of LS-DYNA.The correlation results clearly show the feasibility of the proposed test method for fracture characterization,as well as the validity of MMC fracture model in fracture behavior prediction.Using the simulation approach presented in this paper can support AHSS energy-absorbing component design and simulation.

关键词： advanced high-strength steel mechanical properties modified Mohr-coulomb fracture

作者: WANG Lei LAI Xinghua XIA Yong LI Jie JIANG Yazhou

作者单位: Suzhou Automobile Research Institute of Tsinghua University(Xiangcheng),Suzhou 215000, Jiangsu, Chin Tsinghua University, Beijing 100000, China Chongqing Changan Automobile Co., Chongqing 404100, China

会议类型: 国际会议

会议名称: the 1st International Conference on Automobile Steel & The 3rd International Conference on High Manganese Steels (第一届国际汽车用钢大会暨第三届高锰钢国际会议)

会议地点: 成都

会议语种:英文

页码: 472-475

在线出版日期: 2016-11-16（万方平台首次上网日期，不代表论文的发表时间）