Nonlinear fracture mechanics metal foams

摘要：

　　Nonlinear fracture mechanics of metal foams is discussed. The equivalent continuum constitutive model is introduced first. Then we studied analytic solutions on plastic analysis based on generalized cohesive force model, approximate analytic solution of elasto-plastic analysis for central crack, single edge crack specimens in tension and bending, respectively. The finite element analysis is also conducted. In addition, the crack slowly growth and fast propagation are studied as well.Atthe end we proposed a fracture criterion on metal foam.

关键词： Cellular/foam material Crack tip opening displacement Analytic solution in closed foam Approximate solutions Finite element analysis

作者: Tian You Fan Hai Yun Hu Ling Yun Xie Lin Feng Sun Rui Ping Guo

作者单位: School of Physics,Beijing Institute of Technology,Beijing,100081,China The Academy of Equipment Command and Technology,Beijing,101416,China

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: 1-12

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）