AN EXPERIMENTAL STUDY OF MIXED-MODE FAILURE CRITERIA FOR GLASS/EPOXY COMPOSITES

摘要

Mixed mode delamination tests are performed using MMB specimens. Energy release rate components G_I and G_(II) are calculated using a beam theory. Four mode ratios are chosen to determine a delamination criterion G_I=f(G_(II)). This is compared with a second criterion obtained using a second method based on experimentally determined method. Finally, these tests are applied to bonded composite/composite joints.