Solveur itératif pour des problèmes stochastiques d’interaction sol-structure
Keywords:
BEM-FEM coupling, iterative method, preconditioner, polynomial chaos, Karhunen- Loeve expansionAbstract
This paper deals with the modeling and the numerical simulation of wave propagation in a random media with sol structure interaction. When the random physical soil properties are restricted to a bounded sub-domain, a coupled finite elements and boundary elements method is proposed to perform Monte Carlo simulations. A iterative solver with an common preconditionner for all simulations is built using a polynomial chaos expansion. It is shown, that this preconditionner related to the Dyson equation on the mean field leads to uniform acceleration of the convergence.
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References
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