Calculation of equivalent initial flaw size distributions for multiple-site damage

DOIResolve DOI: http://doi.org/10.2514/6.2014-1526
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TypeArticle
Proceedings title55th AIAA/ASMe/ASCE/AHS/SC Structures, Structural Dynamics, and Materials Conference
Conference55th AIAA/ASMe/ASCE/AHS/SC Structures, Structural Dynamics, and Materials Conference - SciTech Forum and Exposition 2014, 13 January 2014 through 17 January 2014, National Harbor, MD
AbstractAn optimization based methodology was developed to calculate equivalent initial flaw sizes (EIFS) consistent with multiple-site damage in-service findings. The new methodology is compared with a simplified single-crack engineering approach that was previously used for a structural risk analysis. Calculated EIFS, fatigue life, and risk results resulting from both approaches are compared for the Royal Canadian Air Force in-service damage and nil findings at the CC-130 CW-1 location. For the considered case, the results suggest that the simplified engineering approach overestimates the probability of failure.
Publication date
PublisherAIAA
LanguageEnglish
AffiliationNational Research Council Canada; Aerospace
Peer reviewedYes
NPARC number21272718
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Record identifierc936a6d2-7f77-45f2-946b-3b44d0a96ee9
Record created2014-12-03
Record modified2016-05-09
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