@article{article_1225036, title={The Effect of the Arrangement of a Reinforcement on the Mechanical Behavior of a Composite VER Composite Material}, journal={The Eurasia Proceedings of Science Technology Engineering and Mathematics}, volume={21}, pages={152–159}, year={2022}, DOI={10.55549/epstem.1225036}, author={Achache, Habib and Abdı, Ghezail and Boughedaouı, Rachid and Bachır Bouıadjra, Bel Abbes}, keywords={Representative elementary volumes (REV), Stress intensity factor, Finite element method and Crack}, abstract={Composites, like any material, can degrade under the action of the loading applied to them by
causing mechanical degradation of the composite parts (cracking). The study of existing damage and its
behavior is of great importance. In fact, the cracking resulting from the propagation of a defect can lead to the
failure of a component that would promote the total ruin of the structure. Fracture mechanics is the right tool to
analyze this kind of situation based on the material’s fracture characteristics which are the critical stress intensity
factor (KC) or the critical energy restitution rate (GC) also called toughness. This degradation of the composite
has been studied by many authors. The objective of our work is to analyze by the finite element method the
evolution of the parameter KI stress intensity factor of two representative elementary volumes (REV) made of
the same epoxy matrix and with different reinforcing fibers (Alfa and Glass) as a function of the displacement of
the two fibers (a) and (b). The numerical study showed that the position of the fibers has a significant role on the
composite material as well as the alfa/epoxy REV behaves better than the glass/epoxy REV due to the good
mechanical characteristics of the alfa/epoxy REV.}, publisher={ISRES Publishing}