• analysis of cracked transversely isotropic and inhomogeneous solids by a special bie formulation

    نویسندگان :
    جزئیات بیشتر مقاله
    • تاریخ ارائه: 1390/01/01
    • تاریخ انتشار در تی پی بین: 1390/01/01
    • تعداد بازدید: 722
    • تعداد پرسش و پاسخ ها: 0
    • شماره تماس دبیرخانه رویداد: -
     in this paper, a special boundary integral equation (bie) formation is proposed to analyze the fracture problem in transversely isotropic and inhomogeneous solids. in this formulation, the single-domain boundary element method (bem) is utilized to discretize the cracked matrix and the displacement bem to the surface of the embedded inhomogeneity. the two regions are then connected through the continuity conditions along their joint interface. the conventional and three special nine-node quadrilateral elements are utilized to discretize the inhomogeneity–matrix interface and the crack surface. from the crack-opening displacements on the crack surface, the mixed-mode stress intensity factors (sifs) are calculated, using the well-known asymptotic expression in terms of the barnett–lothe tensor. in the numerical analysis, the distance between the inhomogeneity and the crack as well as the orientation of the isotropic plane of the transversely isotropic media is varied to show their influences on the mixed-mode sifs along the crack fronts.

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