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- W2080309231 abstract "The stochastic finite element analysis of elliptic type partial differential equations is considered. A reduced method of the spectral stochastic finite element method using polynomial chaos is proposed. The method is based on the spectral decomposition of the deterministic system matrix. The reduction is achieved by retaining only the dominant eigenvalues and eigenvectors. The response of the reduced system is expanded as a series of Hermite polynomials, and a Galerkin error minimization approach is applied to obtain the deterministic coefficients of the expansion. The moments and probability density function of the solution are obtained by a process similar to the classical spectral stochastic finite element method. The method is illustrated using three carefully selected numerical examples, namely, bending of a stochastic beam, flow through porous media with stochastic permeability and transverse bending of a plate with stochastic properties. The results obtained from the proposed method are compared with classical polynomial chaos and direct Monte Carlo simulation results." @default.
- W2080309231 created "2016-06-24" @default.
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- W2080309231 date "2012-06-01" @default.
- W2080309231 modified "2023-10-14" @default.
- W2080309231 title "A reduced polynomial chaos expansion method for the stochastic finite element analysis" @default.
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- W2080309231 doi "https://doi.org/10.1007/s12046-012-0085-1" @default.
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