Abstract
An indirect boundary element method has been used to analyse three-dimensional elastodynamic fracture mechanics mixed-mode problems. Laplace transforms were used to reduce the dynamic problem to an equivalent static problem. The stress intensity factors which are now functions of the transform parameter were evaluated by both the equivalent stress method and the weight function method. Values in the time domain K ζ ( τ) were obtained from the Laplace transform solution by the Durbin inversion method. Results for mixed-mode dynamic stress intensity factors are presented for both square cracks and elliptical cracks. Arbitrary times dependence of the loading function is treated by a Green’s function technique.
Published Version
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