1. ASTM-E399 (2017) Standard test method for linear-elastic plane-strain fracture toughness KIc of metallic materials
2. ASTM STP 668 (1979) Elastic-plastic fracture. Landes JD, Begley JA, Clarcke GA (eds)
3. Adams NJI, Munro HG (1974) A single test method for evaluation of the J-integral as a fracture parameter. Eng Fract Mech 6:119–132
4. Ballatore E, Carpinteri A, Ferrara G et al (1990) Mixed mode fracture energy of concrete. Eng Fract Mech 35:145–157
5. Barr B, Bear TJ (1976) A simple test of fracture toughness. Concrete 10:25–27