1. American Society of Testing and Materials (ASTM). Standard test method for measurement of fracture toughness. E1820-11. West Conshohocken (PA, United States): ASTM International; 2011.
2. ISO 22889:2007. Metallic materials: method of test for the determination of resistance to stable crack extension using specimens of low constraint. International Organization for Standardization; 2007.
3. Constraint effects on ductile fracture processes near a notch tip under mixed-mode loading;Roy;Engng Fract Mech,1999
4. Mixed-mode I/II fracture behavior of an aluminum-alloy;Hallback;J Mech Phys Solids,1994
5. Mixed-mode I/II fracture behaviour of a high strength steel;Hallback;Int J Fract,1997