Analysis of Edge Bridged Crack in Bimaterial Anisotropic Half-Space


Article Preview

The problem of an edge-bridged crack terminating perpendicular to a bimaterial interface in a half- space is analyzed for a general case of elastic anisotropy bimaterials and specialized for the case of orthotropic bimaterials. The edge crack lies in the surface layer of thickness h bonded to semi-infinite substrate. It is assumed that long fibres bridge the crack. Bridging model follows from the assumption of “large” slip lengths adjacent to the crack faces and neglect of initial stresses. The crack is modelled by means of continuous distribution of dislocations, which is assumed to be singular at the crack tip. With respect to the bridged crack problems in finite dissimilar bodies, the reciprocal theorem (ψ - integral) is discussed as to compute, in the present context, the generalized stress intensity factor through the remote stress and displacement field for a particular specimen geometry and boundary conditions using FEM.



Key Engineering Materials (Volumes 324-325)

Edited by:

M.H. Aliabadi, Qingfen Li, Li Li and F.-G. Buchholz






T. Profant et al., "Analysis of Edge Bridged Crack in Bimaterial Anisotropic Half-Space ", Key Engineering Materials, Vols. 324-325, pp. 1143-1148, 2006

Online since:

November 2006




[1] S.G. Lekhnitskii: Theory of elasticity of an anisotropic body (Holden-Day, San Francisco 1963).

[2] Z. Suo: Proc. R. Soc. Lond. A Vol 427 (1990), p.331.

[3] C.F. Shih, R.J. Asaro: ASME J. Appl. Mech. Vol 55 (1988), p.299.

[4] I. Babuska, A. Miller: Int. Num. Meth. Engng. Vol 20 (1984), p.1111.

[5] B. Budiansky, J.W. Hutchinson, A.G. Evans:. J. Mech. Phys. Solids Vol 34 (1986), p.167.

[6] S.T. Choi, Y.Y. Earmme: Int. J. Solid Structures Vol 39 (2002), p.943. Acknowledgments: The support through the grant GACR 101/05/0320 is gratefully acknowledged.

In order to see related information, you need to Login.