A hyper-singular numerical Green's function generation for BEM applied to dynamic SIF problems

This paper introduces the extension of the numerical Green's function appro ach for elastodynamic fracture mechanics problems. The formulation uses the hyper-singular boundary integral equation to obtain the fundamental soluti on for the cracked unbounded medium. The procedure is general and can be ap plied to multiple crack problems of general geometry. Applications to time harmonic and transient (through inverse numerical Fourier and Laplace trans forms) stress intensity factor (SIF) computations are presented and compare d with other numerical and analytical results, showing the good accuracy of the present strategy for these kinds of problems. (C) 1998 Elsevier Scienc e Ltd. All rights reserved.