A weakly-intrusive coupling scheme in space and time for localized effects in explicit dynamics.
Résumé
Composite materials are increasingly employed in aeronautics but can be prone to extensive delamination when submitted to impact loads and the necessity to perform virtual delamination testing under impact becomes essential to engineering workflows. The use of a refined but expensive model for laminates seems desirable. The purpose of the present work consists in reducing the computational costs using a refi ned model only in a limited zone of the domain. To date, many methodologies are available for coupling di fferent models, but they require a re-meshing strategy in order to follow the evolution of the local phenomena. In this work, the basis of a weakly-intrusive approach for dynamics adaptivity, called Substitution method, are presented.