1. Bearing pressures and cracks;Westergaard;Transactions, ASME, Journal of Applied Mechanics,1939
2. A.A. Wells, Unstable crack propagations in metals: damage and fast fracture, in: Proceedings of the Crack Propagation Symposium, Cranfield, 1962.
3. Fracture Mechanics;Ewalds,1985
4. The effect of geometry on the crack opening displacement of a low carbon steel;Matsoukas;Engineering Fracture Mechanics,1986
5. The effect of shallow cracks on crack tip opening displacement;Matsoukas;Engineering Fracture Mechanics,1986