Application of an Advanced GTN Model

ASME 2012 11th Biennial Conference on Engineering Systems Design and AnalysisVolume 1: Advanced Computational Mechanics; Advanced Simulation-Based Engineering Sciences; Virtual and Augmented Reality; Applied Solid Mechanics and Material Processing; Dynamical Systems and ControlNantes, France, July 2–4, 2012Conference Sponsors: InternationalISBN: 978-0-7918-4484-7International audienceThe 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. This model is applied to the prediction of the damage evolution and the stress state in notched specimens made of dual phase steel. By comparing numerical predictions with experimental results based on high-resolution X-ray absorption tomography, the numerical approach was improved and validated