Fatigue crack growth behavior of thermo-mechanically processed AA 5754: Experiment and extended finite element method simulation

Fatigue and fracture parameters such as sigmoidal curve, fatigue crack growth threshold, stress intensity factor (SIF), and Paris constants are evaluated for thermo-mechanically processed Al-Mg (AA 5754) alloy at different stress-ratio. Experimental and numerical techniques are utilized for fracture and fatigue studies. Cryorolling and metal inert gas (MIG) welding processes are adopted to alter its mechanical and fatigue properties. The effect...