Abstract
The effects of the material anisotropy on the stress intensity factor and on the crack shape are investigated for a penny-shaped crack in a transversely isotropic plate of finite thickness. The surfaces of the crack are subjected to uniform pressures. The plate surfaces are free from stresses for case I while smooth-clamp conditions are prescribed on the plate surfaces for case II. The techniques of Hankel transforms are used to obtain solutions for both cases. The solutions are largely written in terms of the sum and difference of the characteristic roots so that the results can easily be seen as real-value functions for both real and complex roots.
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