(1) Cidesi, Pie de la Cuesta 702, Desarrollo San Pablo, Queretaro, QRO, 76130, Mexico;(2) Department of Aerospace and Mechanical Engineering, University of Notre Dame, Notre Dame, IN, 46556, U.S.A.
Abstract:
The elastodynamic response of an infinite orthotropic material with finite crack under concentrated loads is examined. Solution for the stress intensity factor history around the crack tips is found. Laplace and Fourier transforms are employed to solve the equations of motion leading to a Fredholm integral equation on the Laplace transform domain. The dynamic stress intensity factor history can be computed by numerical Laplace transform inversion of the solution of the Fredholm equation. Numerical values of the dynamic stress intensity factor history for some example materials are obtained. This solution can be used as a Green's function to solve dynamic problems involving fini te cracks.