Substructuring Methods for Finite Element Analysis
Component mode synthesis; Domain decomposition; Hybrid simulations
The motivations for employing substructuring in finite element modeling vary from reduction of computational time, modal synthesis using substructure modes, combining experimental and numerical modeling approaches, equitable sharing of resources in parallel computing environment, and treatment of global/local nonlinearities. The details of methods and tools accordingly also vary. An overview of related issues is presented in this entry.
Problems of computational structural mechanics of realistic systems involve inversion and eigenanalysis of large-size matrices and solutions of a large number of coupled ordinary differential equations or algebraic equations. These are computationally demanding tasks, and development of methods to reduce the computational efforts remains relevant notwithstanding advances in computational hardware. This is particularly true in problems of uncertainty quantification,...
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