On Two First Order Reliability Methods for Computing the Non-Probabilistic Reliability Index

Xin Zhou Qiao

doi:10.4028/www.scientific.net/AMM.551.648

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vol. 551On Two First Order Reliability Methods for...

On Two First Order Reliability Methods for Computing the Non-Probabilistic Reliability Index

Abstract:

The two first order reliability methods (FORM) for computing the non-probabilistic reliability index, namely the mean-value method and the design-point method, are investigated. A performance comparison is presented between these two methods. The results show that: (1) the value of the reliability index of the mean-value method depends on the specific form of the limit state function, whereas the value of the reliability index of the design-point one does not;(2) the design-point method should be preferentially used in structural reliability assessment. The conclusions are verified by a numerical example.

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Periodical:

Applied Mechanics and Materials (Volume 551)

Pages:

648-652

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.551.648

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Online since:

May 2014

Authors:

Xin Zhou Qiao

Keywords:

Convex Model, Design-Point FORM, Mean-Value FORM

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