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Time dependent fracture and cohesive zonesThis presentation is concerned with the fracture response of materials which develop cohesive or bridging zones at crack tips. Of special interest are concerns regarding crack stability as a function of the law which governs the interrelation between the displacement(s) or strain across these zones and the corresponding holding tractions. It is found that for some materials unstable crack growth can occur, even before the crack tip has experienced a critical COD or strain across the crack, while for others a critical COD will guarantee the onset of fracture. Also shown are results for a rate dependent nonlinear material model for the region inside of a craze for exploring time dependent crack propagation of rate sensitive materials.
Document ID
19930068924
Document Type
Reprint (Version printed in journal)
Authors
Knauss, W. G. (California Inst. of Technology Pasadena, United States)
Date Acquired
August 16, 2013
Publication Date
July 1, 1993
Publication Information
Publication: ASME, Transactions, Journal of Engineering Materials and Technology
Volume: 115
Issue: 3
ISSN: 0094-4289
Subject Category
CHEMISTRY AND MATERIALS (GENERAL)
Funding Number(s)
CONTRACT_GRANT: NAG1-1474
CONTRACT_GRANT: N00014-84-K-0424
Distribution Limits
Public
Copyright
Other