Failure Probability Estimation of Series Systems

by Lidvin Kjerengtroen,
Paul H. Wirsching,

Document Type: Proceeding Paper

Part of: Probabilistic Methods in Civil Engineering


In this paper, an approximation scheme is presented for analysis of series structural systems where no exact solution exists. If the safety indices of the individual failure functions and the correlation coefficient between the component failure functions are known, only a simple numerical integration is required. Numerous examples have been used to verify the method against known exact results and other approximation methods. The correlation coefficients between the different failure functions are assumed to be identical, i.e., equicorrelation.

Subject Headings: Failure analysis | Structural failures | Probability | Structural systems | Approximation methods | Structural analysis | Safety | Correlation

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