期刊名称：IOP Conference Series: Earth and Environmental Science
印刷版ISSN：1755-1307
电子版ISSN：1755-1315
出版年度：2018
卷号：189
期号：3
页码：032017
DOI：10.1088/1755-1315/189/3/032017
语种：English
出版社：IOP Publishing
摘要：Attributing to its unique dual cover systems, the numerical manifold method (NMM) provides a uniform framework for both continuous and discontinuous analysis. In this work, the NMM is developed to perform 2D transient moisture diffusion analysis in functionally graded materials (FGMs). The NMM discrete formulations are derived based on the governing equation, the boundary conditions and the modified variational principle, and then solved by the backward difference scheme. The accuracy of the proposed method is verified through a typical numerical example, and the influence of the material gradient of the FGMs on the moisture concentration field is also examined.
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