Research Article
Influence of Root Rotation on Delamination Fracture Toughness of Composites
Figure 18
Comparison of experimental [27] and fracture analysis results of the critical load and the corresponding displacement with the crack length of DCB specimens made of carbon/epoxy (XAS-913C, Ciba Geigy plc) composites (lay-up: [−45°/0°/(+45°)2/0°/−45°/+45°/0°/(−45°)2/0°/45°]2, = 20 mm, 2 = 3 mm, = 150 GPa, = 41 Nm, and = 742 J/m2).