Strain localization in ductile materials: Assessment of three X-FEM-based enrichment methods

摘要

The phenomenon of void coalescence induced strain localization plays an important role in the ductile failure process as the intermediate stage between diffuse damage and crack formation. The aim of the present work is double: (i) giving a framework for numerically treating the failure of ductile structures in the context of the X-FEM and (ii) assessing three different enrichment methods allowing for reproducing the intermediate stage of void coalescence induced localization within X-FEM. (C) 2019 Elsevier Ltd. All rights reserved.