Stress intensity factors and weight functions for special crack problems

The failure of cracked components is governed by the stresses in the vicinity of the crack tip. The singular stress contribution is characterised by the stress intensity factor K. Stress intensity factors depend on the geometry of the component and on the special loading conditions (tension, bending, thermal stresses,..). A procedure for their determination is the weight function technique where the weight functions are only dependent on the crack geometry. Stress intensity factors and weight functions are reported for many practical problems in handbooks. In this report new solutions for stress intensity factors and weight functions are compiled in form of tables or approximate relations. (orig.)