Stress analysis of orthotropic planes weakened by cracks

摘要

The stress fields in an orthotropic infinite plane containing Volterra type climb and glide edge dislocations are derived. The dislocation solutions are utilized to formulate integral equations for dislocation density functions on the surfaces of smooth cracks. The integral equations are of Cauchy singular type and are solved for several different cases of crack configurations and arrangements. The results are used to evaluate modes Ⅰ and Ⅱ stress intensity factors for multiple smooth cracks.