Abstract
The Nanocomposite graphite/epoxy material has a high mechanical tensile strength after improving, its Young's modulus substantially strengthening the matrix with nano-particles of graphite. Few patents on the absorption of water by a nanocomposite were published. In this study, we investigate the influence of the absorption of water by the matrix on the fiber matrix interface damage. Our contribution is related to the development of an analytical model based on a genetic approach, using a basic model formalism of Weibull, the model of Cox and the laws diffusion of water in a polymer, where the damage was located by a non-linear acoustic technical. The results show that the rate humidity at 60% does not affect the fiber matrix interface damage of graphite epoxy nanocomposite compared to the other composite materials carbon-epoxy (T300/914) and Polyétheréthercétone (PEEK/APC2) whose interface damage increase to 0.2. Therefore, our findings revealed that the model worked well with the phenomenon of damage to unidirectional composite and nanocomposite materials. Keywords: Damage, fiber, genetic algorithm, interface, matrix, nanocomposite, non-linear acoustic technical.
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