Structural Reliability Analysis Using Combined Space Partition Technique and Unscented Transformation
Publication: Journal of Structural Engineering
Volume 142, Issue 11
Abstract
In this paper, a new approach for estimating the probability of failure is proposed. The method works by dividing the input space into subspaces with the Voronoi diagram and applying the unscented transformation in each subspace. The probability of failure is defined as the sum of the products of the expectation of the failure domain indicator function and the corresponding weight in subspaces. A small number of samples is needed for this method to get a failure probability estimation with high accuracy. The efficiency and robustness of the proposed method are investigated by solving several examples. The results are compared with results of other reliability methods, and they demonstrate the efficiency and robustness of the proposed method.
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Acknowledgments
This work was supported by the National Natural Science Foundation of China (Grant No. NSFC 51475370) and the fundamental research funds for the central university (Grant No. 3102015BJ (II) CG009). The authors are thankful to the anonymous reviewers for their valuable comments.
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Published In
Journal of Structural Engineering
Volume 142 • Issue 11 • November 2016
Copyright
© 2016 American Society of Civil Engineers.
History
Received: Sep 17, 2015
Accepted: Feb 29, 2016
Published online: May 18, 2016
Discussion open until: Oct 18, 2016
Published in print: Nov 1, 2016
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