Automatic cyclic crack propagation calculations in aircraft engines
2010 (English)In: Advances in Fracture and Damage Mechanics VIII, Trans Tech Publications Inc., 2010, 733-736 p.Conference paper (Refereed)
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.
, Key Engineering Materials, ISSN 1013-9826 ; 417-418
Crack propagation, Cycle extraction, Hexahedron, Mixed-mode, Tetrahedron
Other Mechanical Engineering
IdentifiersURN: urn:nbn:se:kth:diva-149430DOI: 10.4028/www.scientific.net/KEM.417-418.733ISI: 000279319200184ScopusID: 2-s2.0-70350313087OAI: oai:DiVA.org:kth-149430DiVA: diva2:745451
8th International Conference on Fracture and Damage Mechanics, September 08-10, 2009. Malta
QC 201409102014-09-102014-08-212014-09-10Bibliographically approved