Activation energy for creep of columnar-grained ice

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Pages362364; # of pages: 3
Subjectice; creep; compressive stresses; elastic modulus; fluage; contrainte de compression; module de young
AbstractThe apparent activation energy for creep of columnar-grained ice subjected to a compressive stress of 9.8 X 10[4]N m[-2] ( 1kgf/cm[2]) is found to be 15.5 kcal mole[-1] from measurements made on a single specimen over the temperature range -5 degrees C to -40 degrees C. The analysis indicates that the deformation is controlled by diffusion processes, and that the difference between the measured activation energy and that for self-diffusion in ice can be explained by the temperature dependence of Young's modulus.
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AffiliationNRC Institute for Research in Construction; National Research Council Canada
Peer reviewedNo
NRC number13398
NPARC number20374857
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Record identifier9aa64525-6e2c-4bac-81b0-3b7326d542c0
Record created2012-07-23
Record modified2016-05-09
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