Abstract
In this study, generalized stress intensity factors K_<I, λ1>, K_<II, λ2> and K_<III, λ4> are calculated for a V-shaped notched round bar under bending or torsion using the singular integral equation of the body force method. The body force method is used to formulate the problem as a system of singular integral equation, where the unknown functions are the densities of body forces distributed in an infinite body. Then, generalized stress intensity factors at the notch tip are systematically calculated for various shapes of V-shaped notches. The accuracy of Benthem-Koiter's formula proposed for a circumferential crack is also examined through the comparison with the present analysis.
