Abstract
The dynamic problem of non-symmetric extension of a crack in an infinite elastic medium, which is initially in a state of uniform anti-plane shear, has been considered. The problem of non-symmetric extension of a crack due to cohesive traction has also been treated. The method of analysis is based on the observation that certain field quantities show dynamic similarity. The results include expressions for the stress intensity factors at the crack tips and the rate of energy flux into the crack edges for problem I. Numerical calculations are carried out to obtain stress intensity factors and the rate of energy flux into the crack tips for problem I.
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