Assessment of damage evolution behavior in different ductile sheet metals and shapes by the Lemaitre’s ductile damage model

Abstract

Achieving a reliable prediction of damage evolution behavior inductile metalsis among the most important challengesof researchers. In this paper, first, based oncontinuum damage mechanics (CDM) andLemaitre’s ductile damage model, aVUMAT subroutine is developed and implemented into the Abaqus/Explicit code. Alately proposed numerical method is applied to determinematerial dependent damage parameter for ductile metals like AL-5052 H32 aluminum and X30Cr13 steel alloys. Then, the model is employed to assess damage evolution behavior in different ductile sheet metals and shapes. Finally, the numerical simulation results of damage initiation, growth, and crack onset are attained and validated by experimental and contributed results of literature. It is concluded that the recently presented numerical method in combination with the CDM-based Lemaitre’s ductile damage model can successfully estimate the Lemaitre’s ductile damage parameter and accurately predict damage evolution behavior of ductile metals under different loading and boundary conditions.