04.1 - Aerospace Grade Materials, Structural Analysis, Fatigue and Damage Tolerance
RESEARCH ON THE DUCTILE FRACTURE OF AL7085 AND TC11 UNDER COMPLEX STRESS STATE
Y.J. Liu, AVIC the First Aircraft Institute, China
In this paper, ductile fracture behaviors of aluminon alloy AL7085 and titanium alloy TC11 under complex stress state are experimentally and numerically studied. Based on coupon tests and simulations, the curves of triaxiality-fracture strain are obtained as fracture criteria of AL7085 and TC11. The experimental and numerical studies of joint structure are made to verify the fracture criteria.