Abstract
Effects of moisture diffusion under thermal shocks on the fibermatrix interface of polymeric composites are studied in this paper. A micromechanical model based on a Galerkin type finite element formulation is developed in cylindrical coordinate system for the study. Moisture diffusivities are assumed to be temperature dependent. Fourier’s heat conduction equation and Fick’s moisture diffusion equation form the basis of the finite element formulation. Single fiber composite models with both moisture impermeable and permeable fibers are studied. The results indicate extremely high moisture desorption rates at the interface due to thermal shocks.
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