Etude du comportement à la rupture d'un composite bidirectionnel (2D) (verre/époxy)

Abstract

This memory is interested in the characterization of the mechanical properties of two composites: Composite glass/epoxyand composite are juicy/ polyesterwhich are consisted of fabrics laminate bidirectional impregnated in thermohardening resins for goal to obtain good mechanical resistances. Principal citify Object of this work is the determination of behavior to the rupture of composite materials, the characterization of the composites made by the two tests the most used in the breaking process (traction CT, and inflection three points). The test-tubes are characterized in the two directions (chainsand screen), the curves R of tenacity and of the rate of refund of energy are traced by the curves of charge/ displacement(P the characterization of constitute of composite is juicy/ polyester(wire, fabric, resin) is made for goal of groundthe properties of the components. A comparison between each types "resin and matrix" in the two directions to give the influence of the numbers of wire, the results are obtained in conditions known and already site, the maitrise of these conditions of allowing improved composites. The is results and their discussions leave tent to give conclusions on composite materials study