Stochastic Plane Stress Analysis with Elementary Stiffness Matrix Decomposition Method

In this study, the efficient analytical method named elementary stiffness matrix decomposition (ESMD) method is further investigated and utilized for the moment evaluation of stochastic plane stress problems in comparison with the conventional perturbation method in stochastic finite element analysi...

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Bibliographic Details
Published in:Proceedings of the 2nd International Symposium on Computational Mechanics and the 12th International Conference on the Enhancement and Promotion of Computational Methods in Engineering and Science 2009-12, Vol.1233, p.735-740
Main Authors: Er, G K, Wang, M C, Iu, V P, Kou, K P
Format: Article
Language:English
Subjects:
Computational efficiency
Computer programs
Computer simulation
Decomposition
EMS
Finite element method
Mathematical analysis
Mathematical models
Numerical analysis
Performance evaluation
Perturbation methods
Plane stress
Stiffness matrix
Stochasticity
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Summary:In this study, the efficient analytical method named elementary stiffness matrix decomposition (ESMD) method is further investigated and utilized for the moment evaluation of stochastic plane stress problems in comparison with the conventional perturbation method in stochastic finite element analysis. In order to evaluate the performance of this method, computer programs are written and some numerical results about stochastic plane stress problems are obtained. The numerical analysis shows that the computational efficiency is much increased and the computer EMS memory requirement can be much reduced by using ESMD method.
ISSN:0094-243X