Gherissi A, Abbassia F and Zghal A
In the present paper, an investigation was carried out to evaluate the micro scale elastic behaviour of composites. The novelty of this work is to compare three different simulation methods for the composite Carbon/PPS by suggesting a 2D programing simulation approach that would reduce the calculation time of the elastic behaviour of the yarn of woven composite material. To conduct the work an experimental analysis was planned to identify the micro geometric parameters of the composite and to collect all needed dimensions for building the numerical models. The simulation procedures are carried out through three different micro-scale methods and by applying two different finite element approaches: 3D periodic approach, 3D random approach and 2D random approach, the results show that the Young modulus presents a differentiation reach 12% and the Shear Modules G13 and G12 is roughly 11% and 29.39% for G23. The micro mechanical results are discussed according to the recent literature investigations. The numerical results from the proposed approaches are discussed, which show good agreement with reality of the material when using the random 3D approach and very good gain of time of simulation when using the 2D programing simulation approach. This approach reduces the calculation time about 50% compared with other methods.
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