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ISSN Druckformat: 2152-2057
ISSN Online: 2152-2073
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PREDICTION, BY A GENETIC ALGORITHM, OF THE EFFECT OF HEAT STRESS ON THE TRANSVERSE DAMAGE OF FIBER−MATRIX INTERFACE OF HYBRID COMPOSITE MATERIAL (GLASS-CARBON/ EPOXY)
ABSTRAKT
In this paper, we have developed a genetic model to evaluate the influence of thermal stress on the transverse damage of the fiber−matrix interface hybrid composite material Glass_carbon/Epoxy. This genetic approach is based on the Cox equation and the probabilistic models of Weibull: damage of the fiber and damage of the matrix. The model takes into account the effects of temperature that result in the gradual deterioration of the fiber−matrix interface. This study has shown the influence of heat stress beyond a critical threshold of transverse damage to the interface, and also showed that damage to the interface of the carbon/epoxy composite material is greater compared with that of the hybrid composite glass_carbon/Epoxy under the effect of the same thermal stress. Our simulation results are in good agreement with the experimental results conducted by Vasconcelos et al. (2001). Therefore, our findings revealed that the model worked well with the phenomenon of damage to unidirectional composite and hybrid composite materials.