Creep model of ice for monotonically increasing stress

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AuthorSearch for:
TypeArticle
Journal titleCold Regions Science and Technology
ISSN0165-232X
Volume8
Pages2533; # of pages: 9
Subjectice; creep; stresses; strain; mathematical models; numerical integration; strain path prediction
AbstractA numerical integration method of predicting the strain path corresponding to a given stress history, and hence the stress-strain relation, has been developed for polycrystalline materials like ice at high homologous temperatures. The method is based on a generalized creep equation incorporating the grain size effect and predicts strain in terms of elastic, delayed-elastic, and viscous or permanent strains. The theory has been tested successfully during strength tests of ice in the temperature range of -5 to -30 degrees C. The monotonous increase in strain rate observed during testing under conditions of constant cross- head displacement rate can now be explained analytically.
Publication date
LanguageEnglish
AffiliationNRC Institute for Research in Construction; National Research Council Canada
Peer reviewedYes
IdentifierDBR-P-1145
NRC number22787
126
NPARC number20378735
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Record identifier33c343ca-fc70-41a3-9977-58b5e552dd26
Record created2012-07-24
Record modified2016-05-09
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