ANÁLISE DA INFLUÊNCIA DA POROSIDADE NA RESISTÊNCIA MECÂNICA DE COMPÓSITOS DE MATRIZ METÁLICA COM REFORÇO
Abstract
The metal matrix composites have been used in several applications as structural solutions due to mechanical properties such as low density and high mechanical strength. These characteristics are obtained using an association of different materials each one with its mechanical properties. As example, the ductile matrix can be porous leading to a low lightweight. Despite the good mechanical properties obtained with several associations of materials, the consideration of porous in matrix region can lead to collapse of the composite. Therefore, it is important to analyze the ductility of metal matrix composites in presence of porous/voids. For this reason, a multiscale approach based on the concept of the Representative Volume Element (RVE) is used to simulate the mechanical behavior of this kind of material. Also, the effectivity of an insertion of reinforced materials in the composites is investigated. The numerical analyses performed in this paper show good description of the mechanical behavior of the composite material.
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References
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