Challenges in the reliability analysis of large dynamic systems - A novel approach

A. Haldar, R. Farag, J. Huh

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

There is a vacuum in the reliability analysis procedures for large structural systems. The risk analysis procedures should explicitly satisfy all major sources of nonlinearity expected just before failure and the associated uncertainties. One can argue that simulation-based formulations can always be used in the absence of any such procedure. The authors observed that one deterministic nonlinear finite element-based realistic analysis of large systems may take over 5 hours of continuous running of a computer. For the risk analysis of the order of 10-3, at least 10,000 simulations will be required. Thus, it may take years of continuous running of a computer, and yet the extracted probability of failure information may not be representative. The research team is now in the process of developing and verifying a hybrid approach consisting of nonlinear stochastic finite element method, the first/second-order reliability method, response surface method, and advanced factorial schemes. This hybrid approach will be presented in the paper.

Original languageEnglish (US)
Title of host publicationSafety, Reliability, Risk and Life-Cycle Performance of Structures and Infrastructures - Proceedings of the 11th International Conference on Structural Safety and Reliability, ICOSSAR 2013
Pages2859-2866
Number of pages8
StatePublished - Dec 1 2013
Event11th International Conference on Structural Safety and Reliability, ICOSSAR 2013 - New York, NY, United States
Duration: Jun 16 2013Jun 20 2013

Publication series

NameSafety, Reliability, Risk and Life-Cycle Performance of Structures and Infrastructures - Proceedings of the 11th International Conference on Structural Safety and Reliability, ICOSSAR 2013

Other

Other11th International Conference on Structural Safety and Reliability, ICOSSAR 2013
CountryUnited States
CityNew York, NY
Period6/16/136/20/13

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Safety, Risk, Reliability and Quality

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  • Cite this

    Haldar, A., Farag, R., & Huh, J. (2013). Challenges in the reliability analysis of large dynamic systems - A novel approach. In Safety, Reliability, Risk and Life-Cycle Performance of Structures and Infrastructures - Proceedings of the 11th International Conference on Structural Safety and Reliability, ICOSSAR 2013 (pp. 2859-2866). (Safety, Reliability, Risk and Life-Cycle Performance of Structures and Infrastructures - Proceedings of the 11th International Conference on Structural Safety and Reliability, ICOSSAR 2013).