1. ASTM, 1988 Standard test forJIc, a measure of fracture toughness.Annual Book of ASTM Standards, E813-88, American Society for Testing and Materials, Philadelphia, USA.
2. Influence of non-singular stress terms and specimen geometry on small-scale yielding at crack tips in elastic-plastic materials
3. Matched asymptotic expansions in nonlinear fracture mechanics—III. In-plane loading of an elastic perfectly-plastic symmetric specimen
4. BA Bilby, GE Cardew, MR Goldthorpe, and IC Howard , 1986 A finite element investigation of the effects of specimen geometry on the fields of stress and strain at the tips of stationary cracks. In:Size Effects in Fracture, I, Mech. E., London, pp. 37, 46