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Publication Detail
Bayesian assimilation of multi-fidelity finite element models
  • Publication Type:
    Journal article
  • Publication Sub Type:
    Journal Article
  • Authors:
    Diazdelao FA, Adhikari S
  • Publication date:
  • Pagination:
    206, 215
  • Journal:
    Computers and Structures
  • Volume:
  • Status:
  • Print ISSN:
A complex system can be modeled using various fidelities with the finite element method. A high-fidelity model is expected to be more computationally expensive compared to a low-fidelity model and in general may contain more degrees of freedom and more elements. This paper proposes a novel multi-fidelity approach to solve boundary value problems using the finite element method. A Bayesian approach based on Gaussian process emulators in conjunction with the domain decomposition method is developed. Using this approach one can seamlessly assimilate a low-fidelity model with a more expensive high-fidelity model. The idea is illustrated using elliptic boundary value problems. © 2011 Elsevier Ltd. All rights reserved.
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