Risk assessment and lifetime prediction for metallic components

Shaowei Hu*, Brian Moran

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

1 Scopus citations

Abstract

In order to contribute to the development of a methodology for risk assessment (fatigue reliability) and lifetime prediction for safety critical metallic components, the risk assessment and lifetime prediction for critical metallic components are studied. First order reliability method (FORM) is used and application to weep hole cracks in C141 wing is analyzed. A novel method of fitting a closed form mathematical expression for probability of detecting (POD) to experimental C-scan data from C141 weep holes was used in the analysis. FORM methods are combined to compute fatigue reliability for the weep hole configuration. The method shows promise for development as a standalone personal computer based system for structural integrity and reliability assessment.

Original languageEnglish (US)
Article number73751B
JournalProceedings of SPIE - The International Society for Optical Engineering
Volume7375
DOIs
StatePublished - 2009
Externally publishedYes

Keywords

  • Fatigue reliability
  • Lifetime prediction
  • Risk assessment
  • Weep hole crack

ASJC Scopus subject areas

  • Applied Mathematics
  • Computer Science Applications
  • Electrical and Electronic Engineering
  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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