抄録
In this study, evaluation of hygrothermal environmental effects on the graphite/epoxy laminate was demonstrated. In the theoretical part, the Rayleigh-Ritz method was extended to predict the shape of unsymmetric laminates [0/0/90/90] in moist environments. In the experimental part, the curvature changes and the weight changes of the unsymmetric laminate were measured continuously during moisture absorption. The comparison between experimental results and numerical simulated results was effective to understand the behavior of the laminate in the hygrothermal environments. It was found that there are discrepancies between experimental results and numerical results at the high moisture contents, specifically at the high water bath temperature during water absorption. The chemical reaction due to water influences in the laminates, and the limitation of the simulated modeling may result these discrepancies, however, further investigation will be required.
