In this paper an empirical modification in the one-dimensional Fickean solution of moisture absorption by composites has been suggested. Certain physical factors due to which actual process of moisture diffusion in composites differs from the classical diffusion descnbed by Fick's law have been discussed. It is shown that most of the factors which attnbute to the differences between the theoretical prediction and the observed be havior can be accounted for, just by incorporating some parameters in the Fickean solution itself.
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References
1.
Springer, G.S. , B.A. Sanders and R.W. Tung"Environmental Effects on Glass Fiber Reinforced Polyester and Vinyl Composites,"Journal of Composite Materials , 14213-232 (1980)
2.
Springer, G.S."Environmental Effects on Epoxy Matrix Composite," Composite Materials Testing and Design, ASTM STP 647,
3.
S. W. Tsai, ed , American Society for Testing and Materials, p 291 (1979)
4.
Blikstad, M. , P O W Sjoblom and T.R. Johannesson"Long-Term Moisture Absorption in Graphite/Epoxy Angle-Ply Laminates,"Journal of Composite Materials, 1832-46 (1984)
5.
Gurtin, M.E. and C. Yatomi"On a Model for Two-Phase Diffusion in Composite Materials,"Journal of Composite Materials, 13126-130 (1979).
6.
Crank, J.Mathematical Theory of Diffusion, 2nd ed Oxford Press, pp 47, 104-105 (1975).
7.
Weitsman, Y."Moisture in Composites Sorption and Damage," Mechanics and Materials Centre, Texas A&M University, Report No. MM5022-86-11 (1986)
8.
Whiteside, J.B. , R.J. Delasi and R.L. Schuttle"Distribution of Absorbed Moisture in Graphite Epoxy Laminates After Real-Time Environmental Cycling," ASTM STP 813, pp 192-205 (1984)
