Influence of Root Rotation on Delamination Fracture Toughness of Composites

Figure 4

Comparison of experimental [8] and fracture analysis results of the critical load and the corresponding displacement with the crack length of unidirectional DCB specimens made of carbon/PEEK composites ( = 20 mm, 2 = 4.4 mm, = 130 GPa, = 500 Nm, and = 2006 J/m²).