M. Ozturk et F. Erdogan, ANTIPLANE SHEAR CRACK PROBLEM IN BONDED MATERIALS WITH A GRADED INTERFACIAL ZONE, International journal of engineering science, 31(12), 1993, pp. 1641-1657
In this paper the interface crack problem for two elastic half spaces
bonded through a nonhomogeneous interfacial zone is considered. It is
assumed that the medium is under antiplane shear loading. The problem
is solved for two different interfacial zone models that may approxima
te the actual diffusion bonded materials or homogeneous solids bonded
through a functionally gradient material. Extensive results are obtain
ed by varying the stiffness and the interfacial zone thickness to crac
k length ratios. Also, for various limiting cases the behaviour of the
stress intensity factors and the strain energy release rates are stud
ied.