会议专题

The Elastic-viscoplastic Field Near Mode III Dynamic Propagating Crack-tip of Interface in Double Dissimilar Materials

The existence of viscosity effect at the interface of double dissimilar materials has an important impact to the distribution of interface crack-tip field and the properties variety of the interface itself. The singular is considered in crack-tip, and the elastic-viscoplastic quasi-static propagating governing equations of double dissimilar materials at interface crack-tip field are established. The displacement potential function and boundary condition of interface crack-tip are introduced and the numerical analysis of rigid-elastic viscoplastic interface for mode III are worked out. The stress-strain fields are obtained at the crack-tip and the variations of solutions are discussed according to each parameter. The numerical results show that the viscosity effect is a main factor of interface propagating crack-tip field, and the interface crack-tip is a viscoplastic field that is governed by viscosity coefficient??Mach number and singular factor.

Wenyan Liang Zhenqing Wang Pengcheng Lin

Smart Structures and Advanced Composites Laboratory College of Aerospace and Civil Engineering of Harbin Engineering University 145 Nantong Street,Harbin,Heilongjiang 150001 P.R.China

国际会议

The 3rd International Symposium on Systems and Control in Aeronautics and Astronautics(第三届航空航天系统与控制国际会议 ISSCAA 2010)

哈尔滨

英文

1241-1244

2010-01-08(万方平台首次上网日期,不代表论文的发表时间)