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A unified framework for computational microstructure-based snow mechanics
2021<p>The effective mechanical behavior of snow can be deduced from microstructural homogenization through numerical simulations. Although such numerical upscaling of elasticity and strength of snow microstructures is standard (using FEM), numerical schemes to study generic features of the transition from small to large strain situations ...
Lars Blatny +3 more
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Microstructural analytical techniques for snow compacted by an aircraft tire
Tribology International, 2007Abstract Assessing the frictional condition of snow-contaminated runways is difficult and requires an understanding of the tribological processes during the tire–snow–pavement interaction. Hence, analytical techniques to study the snow after the interaction are desired.
Alex Klein-Paste +3 more
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On mechanics and microstructure of weak snow layers
Trockene Schneebrettlawinen entstehen, wenn eine Schwachschicht in der Schneedecke versagt. Diese lokale Schädigung kann sich in Form eines Risses über einen ganzen Hang ausbreiten und die Verbindung des darüberliegenden Schneebretts zur Unterlage trennen.openaire +1 more source
Changes in Microstructural Parameters of Snow during Deformation.
1994Abstract : This study utilized quantitative and morphology theory to describe the microstructure of cohesive granular materials and to relate microstructure to mechanical and physical properties. Snow was used as the experimental material. A unique feature of the theory developed in this grant involved the description of the necked areas which are the ...
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Snow Microstructure over Antarctic Landfast Ice
Landfast ice plays a significant role in climate and ecosystems in Antarctic coastal regions. From October to December 2022, we investigated the physical properties of snow and sea ice on Antarctic landfast ice in McMurdo Sound, following the protocols from the MSOAiC expedition. Our measurements confirmed some findings from MOSAiC (e.g.Ruzica Dadic +9 more
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Triaxial creep tests on snow and a new microstructure-based snow viscosity law
2000Snow is a highly non-linear visco-elastic material characterised by a complex microstructure. In this paper we present a constitutive model for snow that is based on the axial and inelastic micro-structural deformations of the ice lattice. We determine the average micro-structural stress in the grain necks and then apply a strain-rate and temperature ...
Bartelt, Perry, von Moos, Markus
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X-Ray Tomography-Based Microstructure Representation in the Snow Microwave Radiative Transfer Model
IEEE Transactions on Geoscience and Remote Sensing, 2022Anna Kontu +2 more
exaly
Arctic and subarctic snow microstructure analysis for microwave brightness temperature simulations
Remote Sensing of Environment, 2020Alexandre Roy +2 more
exaly
A physical SNOWPACK model for the Swiss avalanche warning
Cold Regions Science and Technology, 2002Perry Bartelt +2 more
exaly