Limit-state surface element method: Application to fatigue reliability with NDE inspections

B. Moran*, Y. Xu, J. D. Achenbach

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

3 Scopus citations


A new method, named the limit-state surface element (LSSE) method, for problems in structural reliability is presented. The method is based on discretization of the limit-state surface into a finite number of elements. This allows for better representations of the failure surface in regions of high curvature than is possible with standard FORM techniques. The reliability is estimated as a sum of integrals over subdomains in the space of standard normal variables associated with the surface elements. Several benchmark problems are presented to demonstrate the accuracy and utility of the method, and a problem in fatigue reliability with NDE inspections is presented as a practical application of the method and a demonstration of the potential interrelations between QNDE and reliability assessment.

Original languageEnglish (US)
Pages (from-to)684-692
Number of pages9
JournalJournal of Engineering Mechanics
Issue number7
StatePublished - Jul 2000
Externally publishedYes

ASJC Scopus subject areas

  • Mechanics of Materials
  • Mechanical Engineering


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