Stress intensity factors of a radial crack in a compound disk subjected to point loads

Abstract

A compound disk or compound cylinder containing a radial crack, subjected to point loads, is studied and the stress intensity factors are calculated. To approach the crack problem, the uncracked compound disk solution is sought first using the complex variable method. By superposition with the uncracked geometry solution and by integration of the corresponding dislocation solution, the crack problem can be formulated in terms of a singular integral equation, and the stress intensity factors of the radial crack can be evaluated accurately using a collocation technique. Extensive numerical results for both tensile and compressive point loads are obtained.