DETERMINATION OF STRESS INTENSITY FACTORS AND BOUNDARY ELEMENT ANALYSIS FOR INTERFACE CRACKS IN DISSIMILAR ANISOTROPIC MATERIALS

After determining the eigenvectors and clarifying the stress intensity factors which are used in Suo's representation of the stress and displacement fields for an interface crack in anisotropic dissimilar materials, an extrapolation method is proposed to determine the stress intensity factors of an interface crack in anisotropic dissimilar materials by numerical methods such as FEM or BEM. In accordance with the proposed method BEM results of the stress intensity factors for the interface crack in various material combinations am shown and discussed.