Should the translaminar fracture toughness of laminated composites be represented by the <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline" id="d1e397" altimg="si66.svg"><mml:mi>R</mml:mi></mml:math> or the <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline" id="d1e402" altimg="si67.svg"><mml:mi>J</mml:mi></mml:math> curve? A comparison of their consistency and predictive capability
Composites. Part A, Applied science and manufacturing