Thermal and shear deformations effects

The composite fiber materials of polymers (FRP) have physical properties, which exploited recently for the reinforcement of the structures subjected to degradation or default risks, with an environment requested permanently with mechanical and thermal load variations. These composites used, in particular, to prolong the lifespan of these structures, in particular, and protect themes of their environment. This type of reinforcement by composites fiber gives the stress concentration in the interface of structure and adhesive zone. In this paper, an originally model presented to predict and determine this stresses concentration, due to thermal effects coupled to the model of structural deformation under the shear lag effect. We have developed a new theoretical approach, which is the continuation of that done of R. Denton (2001). The validated resolution take into account, as well as, the physical parametric properties of materials and the geometrical adherends form.