Abstract
The three-dimensional elastodynamic response of two parallel penny-shaped cracks embedded in an infinite elastic solid under the action of impact loading is investigated. A time-domain boundary integral equation method is used for calculating the time-dependent crack opening displacements and subsequently the dynamic stress intensity factors. Numerical computations are carried out for various geometry parameters. The results are presented in graphical form and discussed. The effect of the locations of the cracks on the dynamic stress intensity factors is presented.
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