1. R6. Assessment of the integrity of structures containing defects, 4th ed. Barnwood: British Energy; 2001.
2. Fracture mechanics – fundamentals and application;Anderson,1995
3. ASTM-E399. Standard method for plane-strain fracture toughness of metallic materials, E399. West Conshohocken, PA: ASTM; 2004.
4. The effect of notch depth and orientation on the fracture toughness of multi-pass weldments;Sumpter;Int J Pres Ves Pip,1982
5. Unified measure of constraint;Mostafavi,2009