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A viscoplastic model for single crystalsA viscoplastic constitutive model is described in which deformation behavior is postulated on representative slip systems and the behavior of the entire crystal is determined by summing the slip on the active slip systems. By building in the slip geometry known from the metallurgical literature, it is possible to predict the anisotropic deformation behavior and to model in a straightforward manner other phenomena which have been described by metallurgists in crystallographic terms. Elevated temperature tension-torsion tests were run and used to verify the model's predictive abilities. Ratchetting behavior under thermomechanical loading conditions is specifically addressed.
Document ID
19920042093
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Jordan, E. H.
(Connecticut, University Storrs, United States)
Walker, K. P.
(Engineering Science Software, Inc. Smithfield, RI, United States)
Date Acquired
August 15, 2013
Publication Date
January 1, 1992
Publication Information
Publication: ASME, Transactions, Journal of Engineering Materials and Technology
Volume: 114
ISSN: 0094-4289
Subject Category
Structural Mechanics
Accession Number
92A24717
Funding Number(s)
CONTRACT_GRANT: NAG3-512
CONTRACT_GRANT: DE-AC02-88ER-13895
Distribution Limits
Public
Copyright
Other

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