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Macrocrack interaction with transverse array of microcracksGeneral formulation of a problem involving a macrocrack propagating through an area with microcracks is considered. The analysis is based on the simultaneous solution of a system of singular integral equations. Various methods described in the literature are discussed in detail and compared. The specific problem considered was a macrocrack approaching an infinite transverse array of microcracks. Results illustrate the effects of different loading types and can be used for interpretation of the microcrack toughening mechanisms. Numerical comparisons are made with data recently appearing in literature which demonstrates the importance of numerical accuracy. Reported results differ by a factor in certain cases as compared with data given in other literature.
Document ID
19870016174
Acquisition Source
Legacy CDMS
Document Type
Contractor Report (CR)
Authors
Rubinstein, A. A.
(Tulane Univ. New Orleans, LA, United States)
Choi, H. C.
(Illinois Univ. Urbana-Champaign., United States)
Date Acquired
September 5, 2013
Publication Date
July 1, 1987
Subject Category
Structural Mechanics
Report/Patent Number
NAS 1.26:180806
NASA-CR-180806
Accession Number
87N25607
Funding Number(s)
CONTRACT_GRANT: NAG3-751
PROJECT: RTOP 553-13-00
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
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