EFFECT OF ORTHOTROPY ON SINGULAR STRESSES FOR A FINITE CRACK

The diffraction of P and S V-waves by a finite crack located on a symmetric surface of orthotropy is considered. By obtaining the singular stress distributions near the crack lip and dynamic stress-intensity factors, we show the influences of orthotropy on the stress distributions with orthotopic parameters, xα and Kβ, and on the stress-intensity factors for P-waves in graph. The solution is presented in the form of integral equation having the kernel of a finite integration which is derived tinder some restrictions among the elastic constants. The conditions are satisfied for many orthotropic solids. © 1973 by ASME.