Solid Truss to Shell Numerical Homogenization of Prefabricated Composite Slabs

The need for quick and easy deflection calculations of various prefabricated slabs causes simplified procedures numerical tools to be used more often. Modelling full 3D finite element (FE) geometry such plates is not only uneconomical but often requires the use complex software advanced knowledge. Therefore, homogenization an excellent tool, which can easily employed simplify a model, especially when accurate modelling necessary. Homogenization allows simplifying computational model replacing complicated composite structure with homogeneous plate. Here, method based on strain energy equivalence derived. Based proposed, concrete reinforced steel spatial trusses homogenized single plate effective stiffness. There complete between FE built solid elements combined truss structural model. correct any structures made both elements, without perform analyses. requirement correctly formulated stiffness matrix representative volume (RVE) appropriate formulation transformation kinematic constrains RVE boundary generalized strains.