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Record #125115:

Discrete modelling of grain scale deformation mechanisms for ice in compression / Richard F. McKenna.

Title: Discrete modelling of grain scale deformation mechanisms for ice in compression / Richard F. McKenna.
Author(s): McKenna, Richard F.
Date: [1993]
Publisher: Edmonton, Alberta: University of Alberta, Department of Civil Engineering
In: IAHR 92; 11th International Symposium on Ice, Banff, Alberta, Canada, June 15-19, 1992. Proceedings. ([1993]), Vol.1.
Abstract: Discrete numerical model was developed to address some mechanisms influencing static deformation of ice and formation of cracks, and to assess influence of cracks on ice behaviour. Deformation of S2 columnar ice in horizontal plane is considered using finite/discrete element model, which accounts for anisotropic properties of individual grains and behaviour along grain boundaries. Emphasizes factors that influence delayed elasticity (primary or recoverable creep), which is caused by relative creep rates between adjacent grains and along grain boundaries. Constant applied stresses of 1 MPa are modelled which correspond to strain rates of about 10⁻⁵ s⁻¹.
Notes:

In: IAHR 92; 11th International Symposium on Ice, Banff, Alberta, Canada, June 15-19, 1992. Proceedings. Vol.1. / International Association for Hydraulic Research.

Keywords: 551.32 -- Glaciology.
551.322 -- Ice and snow.
551.326 -- Floating ice.
53 -- Physics.
539.37 -- Ice, plastic and viscous deformation.
E4 -- Glaciology: physics and chemistry of ice.
SPRI record no.: 125115

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100 1# ‡aMcKenna, Richard F.
245 10 ‡aDiscrete modelling of grain scale deformation mechanisms for ice in compression /‡cRichard F. McKenna.
260 ## ‡aEdmonton, Alberta :‡bUniversity of Alberta, Department of Civil Engineering,‡c[1993]
300 ## ‡ap. 152-163 :‡bdiags.
500 ## ‡aIn: IAHR 92; 11th International Symposium on Ice, Banff, Alberta, Canada, June 15-19, 1992. Proceedings. Vol.1. / International Association for Hydraulic Research.
520 3# ‡aDiscrete numerical model was developed to address some mechanisms influencing static deformation of ice and formation of cracks, and to assess influence of cracks on ice behaviour. Deformation of S2 columnar ice in horizontal plane is considered using finite/discrete element model, which accounts for anisotropic properties of individual grains and behaviour along grain boundaries. Emphasizes factors that influence delayed elasticity (primary or recoverable creep), which is caused by relative creep rates between adjacent grains and along grain boundaries. Constant applied stresses of 1 MPa are modelled which correspond to strain rates of about 10⁻⁵ s⁻¹.
650 07 ‡a551.32 -- Glaciology.‡2udc
650 07 ‡a551.322 -- Ice and snow.‡2udc
650 07 ‡a551.326 -- Floating ice.‡2udc
650 07 ‡a53 -- Physics.‡2udc
650 07 ‡a539.37 -- Ice, plastic and viscous deformation.‡2udc
650 07 ‡aE4 -- Glaciology: physics and chemistry of ice.‡2local
773 0# ‡7c2am ‡aInternational Association for Hydraulic Research. ‡tIAHR 92; 11th International Symposium on Ice, Banff, Alberta, Canada, June 15-19, 1992. Proceedings. ‡dEdmonton, Alberta : University of Alberta, Department of Civil Engineering, [1993] ‡gVol.1. ‡wSPRI-125102
917 ## ‡aUnenhanced record from Muscat, imported 2019
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