Evaluation Of Residual Stress On Epoxy Based Coating Using X-ray And Fem-ann Methods

Résumé: In this paper, measure the residual stress in three types of epoxy coatings used as a lining for crude oil storage tank (pure, Novolac and reinforced by glass-flake) using X-ray method and then compared with that predicted values using finite element and artificial neural network methods. The effect of coatings thickness, volumetric shrinkage, coating viscosity and the curing temperatures are studied in details. The results shows that the pure epoxy has large values of residual stresses, while the Novolac epoxy have smallest values and the reinforced by glass-flake have intermediate values. Tests results demonstrate that the coats cured at high temperatures has high residual stresses compared to that cured at lower temperatures.

Publié dans la revue: Journal of New Technology and Materials