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Record #125452:

A microstructure-based constitutive law for snow / Puneet Mahajan, Robert L. Brown.

Title: A microstructure-based constitutive law for snow / Puneet Mahajan, Robert L. Brown.
Author(s): Mahajan, Puneet.
Brown, Robert L.
Date: 1993.
In: Annals of Glaciology. (1993.), Vol. 18 (1993)
Abstract: Constitutive theory of snow is developed to describe mechanical properties of snow in terms of properties of ice grains and necks that interconnect them. Principle of virtual work is used to calculate stresses in particles and necks. Several deformation mechanisms are investigated, and, depending on deformation mechanism that is dominant for given load conditions, different equations are used to calculate strains in grains and necks. These strains around representative ice grain are then averaged and scaled to obtain global strains in snow. Theory works, but is cumbersome to implement.
Notes:

Annals of Glaciology. Vol. 18 :287-294 (1993).

Keywords: 551.578.46 -- Snow cover and snow patches.
539.37 -- Ice, plastic and viscous deformation.
519.673 -- Modelling.
E10 -- Glaciology: snow and avalanches.
SPRI record no.: 125452

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500 ## ‡aAnnals of Glaciology. Vol. 18 :287-294 (1993).
520 3# ‡aConstitutive theory of snow is developed to describe mechanical properties of snow in terms of properties of ice grains and necks that interconnect them. Principle of virtual work is used to calculate stresses in particles and necks. Several deformation mechanisms are investigated, and, depending on deformation mechanism that is dominant for given load conditions, different equations are used to calculate strains in grains and necks. These strains around representative ice grain are then averaged and scaled to obtain global strains in snow. Theory works, but is cumbersome to implement.
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650 07 ‡a519.673 -- Modelling.‡2udc
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