A novel methodology for the rapid identification of the water diffusion coefficients of composite materials |
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| Affiliation: | 1. Department of Computer Science and Information Engineering, National Cheng Kung University, Taiwan, ROC;2. Department of Computer Science and Information Engineering, National University of Kaohsiung, Taiwan, ROC;3. Department of Computer Science, National Chiao Tung University, Taiwan, ROC;1. Centre for Process Integration, School of Chemical Engineering and Analytical Science, The University of Manchester, P.O. Box 88, Manchester, M60 1QD, UK;2. Department of Chemistry and Chemical Engineering, Inha University, 253, Yonghyun-Dong, Nam-Gu, Incheon, 402-751, South Korea |
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| Abstract: | The paper presents a novel methodology for the rapid identification of the water diffusion coefficients of composite materials. The methodology consists in employing a numerical parametric Proper Generalized Decomposition (PGD) method allowing incorporating the diffusion coefficients among the number of degrees of freedom. Compared to classical identification schemes, often based on Finite Element Method (FEM) iterations, the proposed method allows achieving consistent CPU time gain. The method is general and can be applied when diffusion anomalies take place or when diffusion–reaction coupling must be taken into account, moreover can deal with anisotropic materials. However, for the scope of illustration, in the present case, it is applied to the simple case of “classical diffusion” (Fick’s model with constant boundary conditions) and concerns isotropic materials. |
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| Keywords: | A Polymer–matrix composites (PMCs) B Environmental degradation C Numerical analysis C Computational modelling |
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