4.0 Article

Intersonic shear crack growth along weak planes

Journal

MATERIALS RESEARCH INNOVATIONS
Volume 3, Issue 4, Pages 236-243

Publisher

SPRINGER VERLAG
DOI: 10.1007/s100190050009

Keywords

intersonic fracture; shear cracks; crack propagation; sheer shock waves; limiting speeds; photoelasticity; dynamic contact

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Classical dynamic fracture theories predict the Rayleigh surface wave speed (c(R)) to be the limiting speed of propagation for mode-I cracks in constitutively homogeneous, isotropic, linear elastic materials subjected to remote loading. For mode-II cracks, propagating along prescribed straight line paths, the same theories, while excluding the possibility of crack growth in the speed regime between c(R) and the shear wave speed, c(S), do not exclude intersonic (c(S)

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