Dependence of crack formation on crystallographic orientation for ice

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DOIResolve DOI: http://doi.org/10.1139/p66-224
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TypeArticle
Journal titleCanadian Journal of Physics
ISSN0008-4204
Volume44
Pages27572764; # of pages: 8
Subjectice; tension cracks; perpendicular stresses; compression; fissuration de tension; contrainte normale; compression
AbstractObservations are reported of crack propagation in columnar- grain, polycrystalline ice subjected to constant compressive load applied perpendicular to the long axis of the columns. About three-quarters of the cracks observed were transcrystalline and the remainder occurred at grain boundaries. The plane of the cracks tended to be parallel to the direction of the applied load. Transcrystalline cracks tended to propagate either parallel or perpendicular to the basal plane. At least two-thirds of the grain boundary cracks were associated with boundaries for which the slip plane of one or both of the adjacent grains was close to parallel or perpendicular to the boundary. It is shown that the observations are consistent with the hypothesis that a minimum number of independent slip systems are required for a grain to conform to an arbitrary deformation under constraints imposed by neighboring grains.
Publication date
LanguageEnglish
AffiliationNRC Institute for Research in Construction; National Research Council Canada
Peer reviewedNo
IdentifierDBR-RP-290
NRC number9185
361
NPARC number20375747
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Record identifier86129d7f-1104-4d11-9efc-fbb306f5ff9d
Record created2012-07-23
Record modified2016-05-09
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