Dominant failure mode analysis using representative samples obtained by multiple response surfaces method

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  • University of Liverpool
  • Changsha University of Science and Technology
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Original languageEnglish
Article number103005
JournalProbabilistic Engineering Mechanics
Volume59
Early online date9 Nov 2019
Publication statusPublished - Jan 2020

Abstract

The conventional methods for failure mode analysis usually fail to identify dominant failure modes efficiently for large structures. To overcome this issue, an approach based on representative samples is proposed, which combines the MRS (multiple response surfaces) method with iterative strategies. The main steps are: (1) use MRS method to approximate the system failure function piecewise and to search the multiple design points; (2) perform deterministic structural analysis to identify failure sequences for samples in the important domain rather than the total domain; (3) solve representative samples with iterative strategies to obtain a converged solution based on a visualization plot. A key merit of this approach is that it can identify dominant failure modes efficiently due to the utilization of samples with most contributions to system failure, such as design points, etc. Numerical examples show that the proposed method can be used well to search dominant failure modes for structures.

Keywords

    Failure mode, Multiple response surfaces, Reliability plot, Representative samples, Sector division, Structural reliability

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Cite this

Dominant failure mode analysis using representative samples obtained by multiple response surfaces method. / Jiang, Youbao; Zhao, Linjie; Beer, Michael et al.
In: Probabilistic Engineering Mechanics, Vol. 59, 103005, 01.2020.

Research output: Contribution to journalArticleResearchpeer review

Jiang Y, Zhao L, Beer M, Wang L, Zhang J. Dominant failure mode analysis using representative samples obtained by multiple response surfaces method. Probabilistic Engineering Mechanics. 2020 Jan;59:103005. Epub 2019 Nov 9. doi: 10.1016/j.probengmech.2019.103005
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abstract = "The conventional methods for failure mode analysis usually fail to identify dominant failure modes efficiently for large structures. To overcome this issue, an approach based on representative samples is proposed, which combines the MRS (multiple response surfaces) method with iterative strategies. The main steps are: (1) use MRS method to approximate the system failure function piecewise and to search the multiple design points; (2) perform deterministic structural analysis to identify failure sequences for samples in the important domain rather than the total domain; (3) solve representative samples with iterative strategies to obtain a converged solution based on a visualization plot. A key merit of this approach is that it can identify dominant failure modes efficiently due to the utilization of samples with most contributions to system failure, such as design points, etc. Numerical examples show that the proposed method can be used well to search dominant failure modes for structures.",
keywords = "Failure mode, Multiple response surfaces, Reliability plot, Representative samples, Sector division, Structural reliability",
author = "Youbao Jiang and Linjie Zhao and Michael Beer and Lei Wang and Jianren Zhang",
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AU - Beer, Michael

AU - Wang, Lei

AU - Zhang, Jianren

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