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| An iteration approach for structural non-probabilistic reliability analysis based on hyper-ellipsoidal models |
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| DOI：10.7511/jslx20086140 |
| KeyWord:Hyper-ellipsoidal model,non-probabilistic reliability,reliability index,Most Probable failure Point,iteration algorithm |
| LUO Yang-jun KANG Zhan |
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| Abstract: |
| This paper investigates the iteration algorithms for the non-probabilistic reliability analysis of structures using hyper-ellipsoidal models of uncertainties.For the purpose of alleviating the convergence difficulties of the reliability index calculation in presence of highly nonlinear limit-state functions,the paper proposed a criterion for detecting Zig-zag iterations and a modified iteration scheme based on the HL-RF algorithm.The numerical example demonstrates the validity and efficiency of the present method.The proposed techniques are also shown to be capable of improving the iteration convergence in evaluating the non-probabilistic reliability index. |
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