Local multiscale model reduction using discontinuous Galerkin coupling for elasticity problems
نویسندگان
چکیده
In this paper, we consider the constraint energy minimizing generalized multiscale finite element method (CEM-GMsFEM) with discontinuous Galerkin (DG) coupling for linear elasticity equations in highly heterogeneous and high contrast media. We will introduce construction of a DG version CEM-GMsFEM, such as auxiliary basis functions offline functions. The offers some advantages flexibility coarse grid sparsity resulting discrete systems. Moreover, to our best knowledge, is first time where proof convergence CEM-GMsFEM form given. Some numerical examples be presented illustrate performance method.
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ژورنال
عنوان ژورنال: Computer Methods in Applied Mechanics and Engineering
سال: 2023
ISSN: ['0045-7825', '1879-2138']
DOI: https://doi.org/10.1016/j.cma.2022.115713