A novel approach to reduce calculation time during simulations of resin transfer molding
Keywords:
Resin Transfer Molding, mesh refinement, mesh extrusion, prismatic element, non-conforming finite elementAbstract
The present work aims to reduce the computational burden associated with 3D simulations of Resin Transfer Molding (RTM). The goal is achieved by minimizing the number of elements required to describe the geometrical domain. A 2D mesh refinement technique based on edge subdivision and swapping is coupled to a mesh extrusion algorithm to generate a three-dimensional computational domain composed of multiple layers of planar elements. The refinement optimizes the mesh by stretching or concentrating the elements in desired locations while the full geometry is constructed from relatively low number of elements. Beyond the extrusion algorithm robustness, the solid mesh extruded through the thickness of the composite mirrors the detailed structure of the laminate, including sandwich components. Mold filling calculations are carried out on the extruded mesh using a non-conforming finite element formulation.
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