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International Journal for Numerical Methods in Engineering
Article . 2001 . Peer-reviewed
License: Wiley Online Library User Agreement
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zbMATH Open
Article . 2001
Data sources: zbMATH Open
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A perturbation method for stochastic meshless analysis in elastostatics

A perturbation method for stochastic meshless analysis in elastostatics.
Authors: Rahman, S.; Rao, B. N.;

A perturbation method for stochastic meshless analysis in elastostatics

Abstract

AbstractA stochastic meshless method is presented for solving boundary‐value problems in linear elasticity that involves random material properties. The material property was modelled as a homogeneous random field. A meshless formulation was developed to predict stochastic structural response. Unlike the finite element method, the meshless method requires no structured mesh, since only a scattered set of nodal points is required in the domain of interest. There is no need for fixed connectivities between nodes. In conjunction with the meshless equations, classical perturbation expansions were derived to predict second‐moment characteristics of response. Numerical examples based on one‐ and two‐dimensional problems are presented to examine the accuracy and convergence of the stochastic meshless method. A good agreement is obtained between the results of the proposed method and Monte Carlo simulation. Since mesh generation of complex structures can be a far more time‐consuming and costly effort than the solution of a discrete set of equations, the meshless method provides an attractive alternative to finite element method for solving stochastic mechanics problems. Copyright © 2001 John Wiley & Sons, Ltd.

Related Organizations
Keywords

moving least squares, first- and second-order perturbation methods, element-free Galerkin method, Classical linear elasticity, stochastic finite element, random field, meshless method, Other numerical methods in solid mechanics

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
78
Top 10%
Top 1%
Top 10%
bronze