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Proceedings Paper

Risk assessment and lifetime prediction for metallic components
Author(s): Shaowei Hu; Brian Moran
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Paper 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.

Paper Details

Date Published: 24 August 2009
PDF: 7 pages
Proc. SPIE 7375, ICEM 2008: International Conference on Experimental Mechanics 2008, 73751B (24 August 2009); doi: 10.1117/12.839054
Show Author Affiliations
Shaowei Hu, Nanjing Hydraulic Research Institute (China)
Northwestern Univ. (United States)
Brian Moran, Northestern Univ. (United States)

Published in SPIE Proceedings Vol. 7375:
ICEM 2008: International Conference on Experimental Mechanics 2008
Xiaoyuan He; Huimin Xie; YiLan Kang, Editor(s)

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