On the Influence of Crack Plane Orientation in Fatigue Crack Propagation and Catastrophic Failure

Leslie Banks-Sills, Daniel Schur

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

4 Scopus citations

Abstract

During fatigue crack propagation in sufficiently thin metallic sheets, shear lips develop which spread throughout the material thickness. This leads to a situation where, in addition to a Mode I component of deformation, there is also a Mode III component. Finite-element calculations are carried out on several geometries in an attempt to assess the effect of this additional deformation upon catastrophic failure and fatigue crack propagation. For these particular geometries, it is shown that the slant crack is less dangerous than the flat crack with regard to catastrophic failure and, when propagating in fatigue, may grow faster or slower than the flat crack.

Original languageEnglish
Title of host publication20th Symposium on Fracture Mechanics
Subtitle of host publicationPerspectives and Directions
EditorsRobert P. Wei, Richard P. Gangloff
PublisherASTM International
Pages497-513
Number of pages17
ISBN (Electronic)9780803112506
DOIs
StatePublished - 1989
Event20th National Symposium on Fracture Mechanics: Perspectives and Directions - Bethlehem, United States
Duration: 23 Jun 198725 Jun 1987

Publication series

NameASTM Special Technical Publication
VolumeSTP 1020
ISSN (Print)0066-0558

Conference

Conference20th National Symposium on Fracture Mechanics: Perspectives and Directions
Country/TerritoryUnited States
CityBethlehem
Period23/06/8725/06/87

Funding

FundersFunder number
Israel Aircraft Industries

    Keywords

    • Mode III
    • fatigue
    • finite elements
    • fracture mechanics
    • mixed-mode
    • shear lips
    • slant crack

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