Numerical simulations of interface cracks in layered magnetoelectroelastic solids under dynamic loadings

摘要：

　　In this paper,transient dynamic crack analysis in two-dimensional,layered,anisotropic and linear magnetoelectroelastic solids is presented.For this purpose,a time-domain boundary element method (BEM) is developed.The layered magnetoelectroelastic solids are modeled by the multi-domain BEM formulation.The time-domain dynamic fundamental solutions for homogeneous and linear magnetoelectroelastic solids are applied in the present BEM.The spatial discretization of the boundary integral equations is performed by a Galerkin-method,while a collocation method is implemented for the temporal discretization of the arising convolution integrals.An explicit time-stepping scheme is obtained to compute the discrete boundary data including the generalized crack-opening-displacements (CODs).To show the effects of the interface,the material combinations and the dynamic loading on the intensity factors,numerical examples are presented and discussed.

关键词： transient dynamic crack analysis linear magnetoelectroelastic solids impact loading interface-cracks dynamic intensity factors

作者: Michael Wünsche Chuanzeng Zhang Jan Sladek Vladimir Sladek

作者单位: Chair of Structural Mechanics,University of Siegen,D-57068 Siegen,Germany Institute of Construction and Architecture,Slovak Academy of Sciences,84503 Bratislava,Slovakia

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: 1-8

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）