On the Effects of Modeling As-Manufactured Geometry: Toward Digital Twin

A simple, nonstandardized material test specimen, which fails along one of two different likely crack paths, is considered herein. The result of deviations in geometry on the order of tenths of a millimeter, this ambiguity in crack path motivates the consideration of as-manufactured component geomet...

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Bibliographic Details
Published inInternational Journal of Aerospace Engineering Vol. 2014; no. 2014; pp. 87 - 96
Main Authors Ingraffea, Anthony R., Heber, Gerd, Hochhalter, Jacob, Cerrone, Albert
Format Journal Article
LanguageEnglish
Published Cairo, Egypt Hindawi Limiteds 01.01.2014
Hindawi Publishing Corporation
John Wiley & Sons, Inc
Hindawi Limited
Subjects
Aerospace engineering
Aircraft components
Ambiguity
Assessments
Behavior
Certification
Crack initiation
Cracks
Design specifications
Deviation
Digital
Environmental engineering
Geometry
Mathematical analysis
United States
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Summary:A simple, nonstandardized material test specimen, which fails along one of two different likely crack paths, is considered herein. The result of deviations in geometry on the order of tenths of a millimeter, this ambiguity in crack path motivates the consideration of as-manufactured component geometry in the design, assessment, and certification of structural systems. Herein, finite element models of as-manufactured specimens are generated and subsequently analyzed to resolve the crack-path ambiguity. The consequence and benefit of such a “personalized” methodology is the prediction of a crack path for each specimen based on its as-manufactured geometry, rather than a distribution of possible specimen geometries or nominal geometry. The consideration of as-manufactured characteristics is central to the Digital Twin concept. Therefore, this work is also intended to motivate its development.
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ISSN:1687-5966
1687-5974
DOI:10.1155/2014/439278