System Reliability Evaluation Based on Stochastic Limit Analysis

Bo Yu; Lu Feng Yang

doi:10.4028/www.scientific.net/AMM.256-259.1144

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 256-259System Reliability Evaluation Based on Stochastic...

System Reliability Evaluation Based on Stochastic Limit Analysis

Abstract:

It is quite difficult to estimate system reliability of complex structures which involve lots of potential failure modes. A novel method for system reliability analysis of frame structure was proposed based on stochastic limit analysis. Stochastic limit load was firstly calculated based on the elastic modulus reduction method (EMRM) by taking the uncertainty of structural resistance into account. Once the limit state equation was established by the stochastic limit load, the system reliability index can be calculated by the first-order reliability method (FORM) efficiently. Numerical example illustrates the efficiency and accuracy of the proposed method by comparing with the traditional failure mode analysis approaches.

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Periodical:

Applied Mechanics and Materials (Volumes 256-259)

Pages:

1144-1147

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.256-259.1144

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Online since:

December 2012

Authors:

Bo Yu*, Lu Feng Yang

Keywords:

Elastic Modulus Reduction Method, Stochastic Limit Load, System Reliability

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