Frontiers of Structural and Civil Engineering
>> 2015,
Volume 9,
Issue 2
doi:
10.1007/s11709-014-0268-4
RESEARCH ARTICLE
Multiscale stochastic finite element method on random field modeling of geotechnical problems – a fast computing procedure
School of Civil Engineering, Beijing Jiaotong University, Beijing 100044, China
Accepted: 2014-07-31
Available online: 2015-06-30
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Abstract
The Green-function-based multiscale stochastic finite element method (MSFEM) has been formulated based on the stochastic variational principle. In this study a fast computing procedure based on the MSFEM is developed to solve random field geotechnical problems with a typical coefficient of variance less than 1. A unique fast computing advantage of the procedure enables computation performed only on those locations of interest, therefore saving a lot of computation. The numerical example on soil settlement shows that the procedure achieves significant computing efficiency compared with Monte Carlo method.