Fatigue crack growth under large scale yielding condition: a tool based on explicit crack growth

Fatigue crack growth under large-scale yielding condition is studied for high-temperature loading. The applied strains are so important that diffuse damage phenomena visible as a network of micro-cracks in front the major crack. survey macroscopic cracked surface nevertheless possible, and numerical simulations with explicit representation this carried out to evaluate driving forces. proposed scheme takes into account plastic wake course 3D model. A non-local model fatigue rate, based on partition strain energy density elastic terms, yields improved results compared classical assessment ∆J by methods.