The multi-grid finite elements with free boundary for the deformation three-dimensional analysis of the deformation of homogeneous and composite thin elastic plates and shells with constant thickness are considered in the article. Finite elements describe the three-dimensional strained state in plates and shells, take into account their heterogeneous structure, the complex character of fastening and loading, generate discrete models of small dimension.
composites, elasticity, plates, shells, finite element method, multi-grid finite elements
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