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Automatic cyclic crack propagation calculations in aircraft engines
KTH, School of Engineering Sciences (SCI), Solid Mechanics (Dept.).
2010 (English)In: Advances in Fracture and Damage Mechanics VIII, Trans Tech Publications Inc., 2010, 733-736 p.Conference paper, Published paper (Refereed)
Abstract [en]

This document describes a mixed-element approach to perform mixed-mode crack propagation calculations in an arbitrary structure in a fully automatic way. In a preprocessing step a cylindrical volume about the crack front is meshed with hexahedral elements while the remaining parts of the structure at interest are filled with tetrahedrons. Subsequently, a finite element calculation is performed yielding the stress field at the crack tip. The postprocessor determines the stress intensity factors and the 3-dimensional crack growth, leading to a new crack front. This procedure is repeated until a user-defined criterion is reached. The method is illustrated by an aircraft casing component.

Place, publisher, year, edition, pages
Trans Tech Publications Inc., 2010. 733-736 p.
Series
Key Engineering Materials, ISSN 1013-9826 ; 417-418
Keyword [en]
Crack propagation, Cycle extraction, Hexahedron, Mixed-mode, Tetrahedron
National Category
Other Mechanical Engineering
Identifiers
URN: urn:nbn:se:kth:diva-149430DOI: 10.4028/www.scientific.net/KEM.417-418.733ISI: 000279319200184Scopus ID: 2-s2.0-70350313087OAI: oai:DiVA.org:kth-149430DiVA: diva2:745451
Conference
8th International Conference on Fracture and Damage Mechanics, September 08-10, 2009. Malta
Note

QC 20140910

Available from: 2014-09-10 Created: 2014-08-21 Last updated: 2014-09-10Bibliographically approved

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CiteExportLink to record
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  • apa
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  • de-DE
  • en-GB
  • en-US
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  • nn-NB
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  • Other locale
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Output format
  • html
  • text
  • asciidoc
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