An experimental investigation on the effect of load ratio and temperature on fatigue crack growth of AA7075-T651
This study presents the fracture mechanics based synergistic effect of load ratio (R = 0.1 to 0.7) and temperature (25 to 200°C) on fatigue crack growth in aerospace grade AA7075-T651. Quarter compact tension specimens under constant amplitude fatigue loading revealed that fatigue life decreased significantly (by 65%...