Hygrothermal studies were carried out on a bidirectional (BID) glass fabric epoxy (LY 5052) composite specimens of Vf= 0.5 for three different cases of conditioning viz. 45°C/85% RH, 45°C/95% RH and 45°C/immersion (100% RH) until saturation was reached. Specimens of different test configurations [(Longitudinal Tensile (LT), Transverse Tensile (TT), Longitudinal Compression (LC), Transverse Compression (LC) and Inplane Shear (IPS)] were conditioned and their diffusion parameters estimated. Fickian diffusion behavior was, in general, observed for all these specimens.
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