Dear researchers,

A rectangular steel plate specimen with a central diamond-shaped defect is subjected to uniaxial loading, as shown in the figure. I aim to investigate the mechanisms of crack initiation and propagation at the defect under impact loading. Currently, I have conducted stress field analysis of pre-existing crack tips under static loading conditions, while for impact loading, I am attempting to apply elastoplastic fracture mechanics methods. I have noticed that many scholars currently utilize phase-field models, peridynamics, XFEM, cohesive zone models, and commercial finite element software such as Abaqus to simulate such problems. How effective are these methods? Are there any more advanced methods available to accurately characterize such issues?

Thank you for your insights.