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2. ISO B. 15024: 2001. Fibre-reinforced plastic composites determination of mode I interlaminar fracture toughness, GIC, for unidirectional reinforced materials BSI; 2002.
3. WK22949 A. New test method for determination of the mode II interlaminar fracture toughness of unidirectional fiber reinforced polymer matrix composites using the end-notched flexure (ENF) test. Conshohocken (PA): ASTM International; 2010.
4. Mixed mode fracture toughness of GFRP composites;Dharmawan;Compos Struct,2006
5. Schuecker C, Davidson BD. Effect of friction on the perceived mode II delamination toughness from three-and four-point bend end-notched flexure tests. ASTM SPECIAL TECHNICAL PUBLICATION, vol. 1383; 2001. p. 334–44.