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Double noding technique for mixed mode crack propagation studiesA simple dynamic finite element algorithm for analyzing a propagating mixed mode crack tip is presented. A double noding technique, which can be easily incorporated into existing dynamic finite element codes, is used together with a corrected J integral to extract modes I and II dynamic stress intensity factors of a propagating crack. The utility of the procedure is demonstrated by analyzing test problems involving a mode I central crack propagating in a plate subjected to uniaxial tension, a mixed mode I and II stationary, slanted central crack in a plate subjected to uniaxial impact loading, and a mixed mode I and II extending, slanted single edge crack in a plate subjected to uniaxial tension. Previously announced in STAR as N83-13491
Document ID
19840055675
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
External Source(s)
Authors
Liaw, B. M.
(Washington Univ. Seattle, WA, United States)
Kobayashi, A. S.
(Washington Univ. Seattle, WA, United States)
Emery, A. F.
(Washington, University Seattle, WA, United States)
Date Acquired
August 12, 2013
Publication Date
May 1, 1984
Publication Information
Publication: International Journal for Numerical Methods in Engineering
Volume: 20
ISSN: 0029-5981
Subject Category
Structural Mechanics
Accession Number
84A38462
Funding Number(s)
CONTRACT_GRANT: NGL-48-002-004
Distribution Limits
Public
Copyright
Other

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