The Finite Element Analysis of a Polymer Based Triangular Cell Sandwich Composite

Finite Element Analysis (FEA) method is used for analysing the mechanical behaviour of standardized tensile and bending (3-point) test specimens made from a multi-layered composite material with two outer polymer facesheets (synthetic glass / plexiglass) and a triangular cellular core. This analysis uses for design and modelling, the software Autodesk Inventor Professional, which will import later the model in the FEA analysis software - ANSYS 14.5. Highlighting the mechanical behaviour of the composite structure specific to the test specimens having cellular polymeric core (ABS, PLA, PC and CF triangular cells, with thicknesses 3 and 5 mm) and analysing the stress/strain state and specific deformations and correlating the FEA simulation results with the experimental tests lead to quasi-equivalent results under similar stress conditions until the specimen fails. Therefore, the FEA analysis of the mechanical assemblies is taking an important step forward in the modern design process, being one of the ways of identifying the von Mises equations and deformation fields in the composite above structures.