MATERIAL INFLUENCES ON THE ESTIMATION OF BOND LINE EFFECTS ON STRESS INTENSITY FACTORS FOR CRACKS PARALLEL TO AND WITHIN BONDLINES BY THE FROZEN STRESS METHOD

摘要

Based upon a limited number of experiments, we conjecture that: ⅰ. There is negligible effect of modulus mismatch on SIF values for cracks in bondlines. ⅱ. There is a strong T_c effect for cracks parallel to and close to the bondlines of bimaterial specimens with T_c mismatch. ⅲ. For cracks within the bondline in bimaterial specimens with T_c mismatch, no T_c effect is detectable on SIF values.