The Stress Intensity Factor Of An Exterior Crack In A Stress Free Strip With Forces At Crack Face

Abstract

The determination of the stress and the displacement fields in the vicinity of a stress-free Griffith crack is reduced to the solution of Fredholm integral equation of second kind by using Fourier transform, finite and integral. The solution of Fredholm integral equation is obtained by the method of expanding the unknown function g() in decreasing powers of a-the half width of the strip. The expression of stress intensity factor, crack shape and the maximum shearing stress at (x,y) in the strip are presented analytically for two types of point forces.