Fatigue analysis of polycrystalline materials using Peridynamic Theory with a novel crack tip detection algorithm

This study presents prediction of crack propagation in polycrystalline materials under cyclic loads using Peridynamic (PD) theory. The PD fatigue model utilizes the strain-load cycle (ε-N) data and introduces the “remaining life” of each bond calculated from its cyclic strain, which changes over time. The model also captures the traditional Paris law, which is widely used for computing the fatigue crack growth. Moreover, a new crack tip...