1. Methods of test for plane strain fracture toughness of metallic materials,1977
2. Fracture toughness testing;Brown,1966
3. Fundamentals of Fracture Mechanics;Knott,1973
4. Plastic zone near a crack and fracture toughness;Irwin,1960
5. Determination of plane strain fracture toughness with sharply notched sheets;Boyle;Welding J. (Research Supplement),1962