An elastic-viscoplastic finite element model for multimaterials - Formulation and experimental validation
Résumé
A finite element model for multimaterial configurations is presented. The material behavior of each body within a composite material is given by an elastic-viscoplastic constitutive law. Automatic remeshing techniques which preserve the topology of the different bodies of material are used to simulate large deformations of the multiphasic system. An experimental set-up has been designed in order to simulate the compaction of multilayer composite materials. Plasticine was chosen as a model material. Experimental results are used to validate the finite element model for consolidation of multilayer composites.