Evaluation of ductile fracture models in high velocity impact problems

摘要：

　　As resourceful stress states,high strain rates,and large plastic deformation were involved,the Taylor test can be used to identify the most suitable fracture criterions for high velocity impact problems.A systematic evaluation is carried out for the maximum principal stress,the maximum principal strain,equivalent plastic strain and Johnson–Cook fracture models by numerical simulations.The applicability of the ductile fracture models are discussed,finally.

关键词： Taylor impact Ductile fracture Johnson-Cook fracture model

作者: Ying Li Xiaobin Li Xiangshao Kong Xing-xing Wu

作者单位: School of Transportation,Wuhan University of Technology,Wuhan,430063

会议类型: 国际会议

会议名称: 第13届国际断裂大会(ICF2013)

会议地点: 北京

会议语种:英文

页码: 1-6

在线出版日期: 2013-06-16（万方平台首次上网日期，不代表论文的发表时间）