Notched Specimens Fracture Prediction with an Advanced GTN Model
This present contribution consists of implementing an advanced GTN damage model as a "User Material subroutine" in the Abaqus FE code. This damage model is based on specific nucleation and growth laws in order to predict the void coalescence properties of the material. When applied, this implementation predicts the damage evolution and the stress state of notched specimens made from dual phase steel. By comparing numerical predictions with experimental results, the numerical approach was improved and then validated.
Z. Tonković and M.H. Aliabadi
J. Fansi et al., "Notched Specimens Fracture Prediction with an Advanced GTN Model", Key Engineering Materials, Vols. 488-489, pp. 77-80, 2012