AN EXPERIMENTAL ANALYSIS OF FRACTURE MECHANICS FOR CRACK TIP NORMAL TO INTERFACIAL
垂直界面裂纹断裂力学问题的实验研究

The problems of an interfacial crack with the crack tip normal to interface are investigated by experiment. High-resolution moire interferometry methods are employed to get displacement fields surrounding cracks. The order of singularity of displacement faction of angular displacement and stress intensity factor are determined from experimental results and it also be compared and discussed with some theoretical results.