Results 41 to 50 of about 2,059 (159)
Numerical study of fracture arrest on snow cover [PDF]
Fracture and Structural Integrity, 2010 Under the hypothesis of a perfectly brittle phenomenon, avalanche triggering can be investigated numerically by means of Linear Elastic Fracture Mechanics (LEFM).
B. Frigo, B. M. Chiaia
doaj
Ice Spheres as Model Snow: Tumbling, Sintering, and Mechanical Tests
Frontiers in Earth Science, 2019 The snow microstructure is crucial for the mechanical behavior of snow, but is usually simplified in numerical models. In Discrete Element Models (DEM), often used in snow mechanics, the microstructure is typically represented by sphere assemblies.
Carolin Willibald +4 more
doaj +1 more source
Journal of GlaciologyQuantifying micromechanical and microstructural properties of snow is crucial, as they control bulk thermal, electrical and mechanical properties.
James Chris McCaslin +3 more
doaj +1 more source
The mechanics of snow friction as revealed by micro-scale interface observations
Journal of Glaciology, 2018 The mechanics of snow friction are central to competitive skiing, safe winter driving and efficient polar sleds. For nearly 80 years, prevailing theory has postulated that self-lubrication accounts for low kinetic friction on snow: dry-contact sliding ...
JAMES H. LEVER +5 more
doaj +1 more source
A Review of Russian Snow Avalanche Models—From Analytical Solutions to Novel 3D Models
Geosciences, 2020 The article is a review of mathematical models of snow avalanches that have been proposed since the middle of the 20th century and are still in use. The main attention is paid to the work of researchers from the Soviet Union and Russia, since many of ...
Margarita Eglit +2 more
doaj +1 more source
Possible erosion mechanisms in snow avalanches
Annals of Glaciology, 2004 AbstractSnow erosion and entrainment processes in avalanches are classified according to their mechanisms, the flow regimes in which they occur, and their spatial position within the avalanche. Simple, but process-specific, models are proposed for erosion by impacts, abrasion, plowing and blasting.
Gauer, Peter, Issler, Dieter
openaire +2 more sources
Quantifying radiative effects of light-absorbing particle deposition on snow at the SnowMIP sites [PDF]
The CryosphereThe deposition of light-absorbing particles (LAPs) leads to a decrease in surface albedo over snow-covered surfaces. This effect, by increasing the energy absorbed by the snowpack, enhances snowmelt and accelerates snow aging, process that in turn are ...
E. Zorzetto +5 more
doaj +1 more source
Influence of Ambient Temperature on the Snow Removal Performance of Self-heating Photovoltaic Panels
Zhileng xuebao, 2020 The removal of snow on photovoltaic (PV) panels has become an important issue in current research on PV panels. In this study, the influence of ambient temperature on the snow removal effect ofself-heating PV panels was studied using the basic principles
Li Zhao +3 more
doaj
Snow mechanics: from snow microstructure to avalanche formation
, 2022 Snow is a fascinating material. Its composition is relatively simple, mainly air and ice, but the arrangement of these components in three dimensions is extremely diverse. This diversity of microstructure, often reduced to discrete snow types, originates from different snowflake growth mechanisms in the atmosphere and the continuous evolution of snow ...
openaire +1 more source
Experimental study on the unconfined apparent shear strength of compacted snow
Journal of GlaciologyTo address the scarcity of data on compacted snow shear damage under complex conditions, unconfined shear tests were conducted in Northeast China. This study examined apparent shear strength variations with density (300–550 kg·m−3), temperature (−17.4°C ...
Jie Wei +7 more
doaj +1 more source