Interface Crack in Anisotropic Solids under Impact Loading
In this paper, transient dynamic crack analysis in two-dimensional, layered, anisotropic and linear elastic solids is presented. For this purpose, a time-domain boundary element method (BEM) is developed. The homogeneous and anisotropic layers are modeled by the multi-domain BEM formulation. Time-domain elastodynamic fundamental solutions for linear elastic and anisotropic 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 developed to compute the discrete boundary data and the crack-opening-displacements (CODs). To show the effects of the material anisotropy and the dynamic loading on the dynamic stress intensity factors, numerical examples are presented and discussed.
J. Alfaiate, M.H. Aliabadi, M. Guagliano and L. Susmel
M. Wünsche et al., "Interface Crack in Anisotropic Solids under Impact Loading", Key Engineering Materials, Vols. 348-349, pp. 73-76, 2007