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Composites: Mechanics, Computations, Applications: An International Journal

ISSN Print: 2152-2057
ISSN Online: 2152-2073

Composites: Mechanics, Computations, Applications: An International Journal

DOI: 10.1615/CompMechComputApplIntJ.v7.i1.30
pages 31-43

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)

M. Morsli
Faculty of Physics, Department of Materials Technology, University of Science and Technology Mohamed Boudiaf, USTO, El M'nouer BP 1505, Oran, Algeria
A. Mokaddem
Faculty of Physics, Department of Materials and Components, University of Science and Technology Houari Boumedienne, U.S.T.H.B., Algiers, Algeria
B. Doumi
Faculty of Sciences, Department of Physics, University of Moulay Tahar, Saida, Algeria
L. Temimi
Faculty of Physics, Department of Materials Technology, University of Science and Technology Mohamed Boudiaf, USTO, El M'nouer BP 1505, Oran, Algeria
A. Boutaous
Faculty of Physics, Department of Materials Technology, University of Science and Technology Mohamed Boudiaf, USTO, El M'nouer BP 1505, Oran, Algeria
N. Beldjoudi
Faculty of Physics, Theoretical Physics Laboratory, U.S.T.H.B., Algiers, Algeria

ABSTRACT

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.