Project (2012AA040209) supported by the High-Tech Research and Development Program of China;Project (11172053) supported by the National Natural Science Foundation of China;Project (12R21421900) supported by Shanghai Postdoctoral Scientific Program, China
Due to the cyclic loading and longtime exposure under extreme environment conditions, fatigue cracks often generate in the aircraft metal structures, i.e. wing skin, fuselage skin, strigners, pylons. These cracks coul...