1. J. G. Williams, “Fracture Mechanics of Polymers” (Ellis Horwood, Chichester, 1984).
2. ASTM E813-87, “Standard Test Method for JIC, A Measure of Fracture Toughness”, Annual Book of ASTM Standards (American Society for Testing and Materials, Philadelphia, PA, 1987) p. 968.
3. “A Testing Protocol for Conducting J-R Curve Tests on Plastics”, edited by G. E. Hale, ESIS Technical Committee for Polymers and Composites (European Structural Integrity Society, 1991).
4. ASTM STP 1114;D. D. Huang,1991
5. S. Hashemi and J. G. Williams, J. Mater. Sci.
26 (1991) 621.