Abstract
The cyclic crack path has been studied on angled centre-cracked specimens of 2024-T3 Al alloy under uniaxial cyclic tensile loading at a stress ratio of 0.2. The crack closure has been measured for the mixed-mode loading at a distance of 1 mm behind the crack tip using a compliance gauge and the results are compared with mode-I closure. The fatigue crack path is predicted using the maximum tensile stress (MTS) and the strain energy density (SED) criteria and compared with the experimental path for different crack angles ( β=15, 30, 45 and 60°). A better agreement is noted between the experimental crack path and the one based on the MTS criterion by using the effective value of beta; K instead of the applied value of βK. The mixed-mode fatigue life has been predicted using the MTS and the SED criteria and compared with the experimental results. The results have been discussed.
Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
