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Record #118446:

Study of ice borehole closure by finite element method / F. Li, B. Koci, J. Kelley.

Title: Study of ice borehole closure by finite element method / F. Li, B. Koci, J. Kelley.
Author(s): Li, F.
Koci, B.
Kelley, J.
Date: 1992.
Publisher: Southampton: Computational Mechanics Publications
In: Advances in Ice Technology : proceedings of the Third International Conference on Ice Technology (ITC 92) held at the Massachusetts Institute of Technology, Cambridge, Massachusetts, U.S.A., during 11-13 August 1992. (1992.),
Abstract: Model developed to estimate bore-hole closure under complex ice and boundary conditions, treating ice as non-linear, visco-incompressible fluid. Verification studies show that model gives accurate results in closure rate, strain rate and stresses. Test with field measurements show that exponent of power law should be considered as variable of ice effective stresses to obtain more accurate results. Empirical relation between exponent and effective stress was obtained with field measurements. Nye's formula was effective under ordinary conditions.
Notes:

In: Advances in Ice Technology : proceedings of the Third International Conference on Ice Technology (ITC 92) held at the Massachusetts Institute of Technology, Cambridge, Massachusetts, U.S.A., during 11-13 August 1992 / Thiruvalam K.S. Murthy, William M. Sackinger, Peter Wadhams, eds.

Keywords: 551.32 -- Glaciology.
551.321 -- Glaciological methods and instruments.
551.321.2 -- Snow and ice, methods of sampling, excavating, drilling, etc.
622.14 -- Core sampling, ice and snow.
622.233 -- Drills and drilling, ice and snow sampling.
622.234.2 -- Ice and snow, thermal boring.
539.37 -- Ice, plastic and viscous deformation.
519.673 -- Modelling.
E3 -- Glaciology: instruments and methods.
SPRI record no.: 118446

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245 10 ‡aStudy of ice borehole closure by finite element method /‡cF. Li, B. Koci, J. Kelley.
260 ## ‡aSouthampton :‡bComputational Mechanics Publications,‡c1992.
300 ## ‡ap. 77-89 :‡bdiags.
500 ## ‡aIn: Advances in Ice Technology : proceedings of the Third International Conference on Ice Technology (ITC 92) held at the Massachusetts Institute of Technology, Cambridge, Massachusetts, U.S.A., during 11-13 August 1992 / Thiruvalam K.S. Murthy, William M. Sackinger, Peter Wadhams, eds.
520 3# ‡aModel developed to estimate bore-hole closure under complex ice and boundary conditions, treating ice as non-linear, visco-incompressible fluid. Verification studies show that model gives accurate results in closure rate, strain rate and stresses. Test with field measurements show that exponent of power law should be considered as variable of ice effective stresses to obtain more accurate results. Empirical relation between exponent and effective stress was obtained with field measurements. Nye's formula was effective under ordinary conditions.
650 07 ‡a551.32 -- Glaciology.‡2udc
650 07 ‡a551.321 -- Glaciological methods and instruments.‡2udc
650 07 ‡a551.321.2 -- Snow and ice, methods of sampling, excavating, drilling, etc.‡2udc
650 07 ‡a622.14 -- Core sampling, ice and snow.‡2udc
650 07 ‡a622.233 -- Drills and drilling, ice and snow sampling.‡2udc
650 07 ‡a622.234.2 -- Ice and snow, thermal boring.‡2udc
650 07 ‡a539.37 -- Ice, plastic and viscous deformation.‡2udc
650 07 ‡a519.673 -- Modelling.‡2udc
650 07 ‡aE3 -- Glaciology: instruments and methods.‡2local
700 1# ‡aKoci, B.
700 1# ‡aKelley, J.
773 0# ‡7nnam ‡aThiruvalam K.S. Murthy, William M. Sackinger, Peter Wadhams, eds. ‡tAdvances in Ice Technology : proceedings of the Third International Conference on Ice Technology (ITC 92) held at the Massachusetts Institute of Technology, Cambridge, Massachusetts, U.S.A., during 11-13 August 1992. ‡dSouthampton : Computational Mechanics Publications, 1992. ‡wSPRI-118439
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