1. Corleto CR, Bradley WL. Mode II delamination fracture toughness of unidirectional graphite/epoxy composites. Composite materials: fatigue and fracture, 2nd ed. 1987.
2. ISO 15024:2001 Fibre-reinforced plastic composites. Determination of mode I interlaminar fracture toughness, GIC, for unidirectionally reinforced materials.
3. ASTM: D5528-94a Standard test method for mode I interlaminar fracture toughness of unidirectional fiber-reinforced polymer matrix composites.
4. On the analysis and design of the end notched flexure (ENF) specimen for mode II testing;Carlsson;J Compos Mater,1986
5. Influence of fibre volume fraction on mode II interlaminar fracture toughness of glass/epoxy using the 4ENF specimen;Davies;Compos Sci Technol,2005