Abstract
The fracture behavior of multi-cracked materials has become a key issue in fracture mechanics and recently has received large attention. In this research, an infinite solid containing penny-shaped ciack and spherical cavity under remote tension was investigated. The effect of spherical cavity on stress intensity factor (SIF) of penny-shaped crack in an infinite solid under tension was determined numerically. In older to calculate SIF, Body Force Method was used. The surface of the crack was expressed by the aggregation of planar triangles. The polar transformation scheme was introduced to integrate the fundamental solution of the body force doublet over the triangular area precisely.
