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elastic interaction of a crack with a microcrack array. i - formulation of the problem and general form of the solution. ii - elastic solution for two crack configurations (piecewise constant and linear approximations)The elastic interactions of a two-dimensional configuration consisting of a crack with an array of microcracks located near the tip are studied. The general form of the solution is based on the potential representations and approximations of tractions on the microcracks by polynomials. In the second part, the technique is applied to two simple two-dimensional configurations involving one and two microcracks. The problems of stress shielding and stress amplification (the reduction or increase of the effective stress intensity factor due to the presence of microcracks) are discussed, and the refinements introduced by higher order polynomial approximations are illustrated.
Document ID
19870049652
Document Type
Reprint (Version printed in journal)
Authors
Chudnovsky, A.
(Illinois, University Chicago, United States)
Dolgopolsky, A.
(Delaware, University Newark, United States)
Kachanov, M.
(Tufts University Medford, MA, United States)
Date Acquired
August 13, 2013
Publication Date
January 1, 1987
Publication Information
Publication: International Journal of Solids and Structures
Volume: 23
Issue: 1 19
ISSN: 0020-7683
Subject Category
STRUCTURAL MECHANICS
Funding Number(s)
CONTRACT_GRANT: NAG3-23
CONTRACT_GRANT: DAAG29-84-K-0184
CONTRACT_GRANT: AF-AFOSR-84-0321
Distribution Limits
Public
Copyright
Other