Your search for Subject weak layer fractureresulted in 115 records.
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- Title: Evaluating a Prototype Field Test for Weak Layer Fracture and Failure Propagation
- Date: 2006
- Authors: Dave Gauthier, Bruce Jamieson
- Description: Researchers and practitioners currently lack a quantitative field test that indicates the propensity of a given slab and weak layer combination to pro...
- Object ID: issw-2006-107-116.pdf
- Keywords: fracture propagation, field test, extended column, snowpack stability, avalanche forecasting
- View additional details about Evaluating a Prototype Field Test for Weak Layer Fracture and Failure Propagation
- Title: An Observation of Depth Hoar in the Maritime
- Date: 2006
- Authors: S. Ikeda, M. Ryan
- Description: Generally speaking, in continental climates thick depth hoar layer may
develop near at or near the ground, where in maritime climates a compacted sno...
- Object ID: issw-2006-132-138.pdf
- Keywords: depth hoar, maritime climate, wind erosion, rainfall
- View additional details about An Observation of Depth Hoar in the Maritime
- Title: The Effect of Slab and Bed Surface Stiffness on the Skier-Induced Shear Stress in Weak Snowpack Layers
- Date: 2006
- Authors: Alan Jones, Bruce Jamieson, Jürg Schweizer
- Description: A finite element model was developed to simulate a snowpack with localized surface loading of a skier on a slab of varying stiffness overlaying a thin...
- Object ID: issw-2006-157-164.pdf
- Keywords: snow avalanche, avalanche formation, skier triggering, numerical modeling
- View additional details about The Effect of Slab and Bed Surface Stiffness on the Skier-Induced Shear Stress in Weak Snowpack Layers
- Title: Size Effects in Slab Avalanche Fractures
- Date: 2006
- Authors: D.M. McClung, C. Borstad
- Description: Size effects in snow failure are an important aspect of avalanche release. A
size effect implies that larger samples have smaller strength than small...
- Object ID: issw-2006-182.pdf
- Keywords: size effect, avalanche fractures, tensile, shear, snow mechanics
- View additional details about Size Effects in Slab Avalanche Fractures
- Title: Fracture and Accumulation Conditions of Snowflakes on the Snow Surface
- Date: 2006
- Authors: Takeshi Sato, Kenji Kosugi, Shigeto Mochizuki, Masaki Nemoto
- Description: Snowflakes colliding with the snow surface break under strong wind conditions and
their fragments are blown off, which leads to the development of dr...
- Object ID: issw-2006-203-210.pdf
- Keywords: snowflake, fracture, accumulation, drifting snow, snowfall
- View additional details about Fracture and Accumulation Conditions of Snowflakes on the Snow Surface
- Title: Snow Slope Stability Evaluation Using Concepts of Fracture Mechanics
- Date: 2006
- Authors: Jürg Schweizer, Ian McCammon, J. Bruce Jamieson
- Description: Dry snow slab avalanche release is generally believed to proceed in three stages:
1) initiation of a local failure, 2) widespread propagation of that...
- Object ID: issw-2006-211-218.pdf
- Keywords: snow stability evaluation, avalanche formation, avalanche release, skier triggering, stability test, fracture
- View additional details about Snow Slope Stability Evaluation Using Concepts of Fracture Mechanics
- Title: Sawlem: Slab and Weak Layer Evolution Model
- Date: 2006
- Authors: Antonia Zeidler, Bruce Jamieson, Thomas Chalmers, Greg Johnson
- Description: Snowpack evolution models developed in Europe require meteorological and radiation
instrumentation rarely used in North America. In contrast, SAWLEM ...
- Object ID: issw-2006-228-233.pdf
- Keywords: slab avalanches, avalanche forecasting, snowpack stratigraphy, persistent weak layers
- View additional details about Sawlem: Slab and Weak Layer Evolution Model
- Title: Some Results of Statistical Processing of Avalanche Geometric Characteristics in the Khibini Mountains
- Date: 2006
- Authors: Pavel Chernous
- Description: Results of statistical analysis of such geometric characteristics as: length and thickness of fracture line, area of its surface, avalanche runout dis...
- Object ID: issw-2006-387.pdf
- Keywords: avalanche dimensions, statistics, catastrophic avalanches
- View additional details about Some Results of Statistical Processing of Avalanche Geometric Characteristics in the Khibini Mountains
- Title: Skier Triggered Surface Hoar: A Discussion of Avalanche Involvements During the 2006 Valdez Chugach Helicopter Ski Season
- Date: 2006
- Authors: Sarah Carter, Peter Carter, Jeff Levison
- Description: April of the 2006 helicopter ski season in the Valdez Alaska Chugach Mountains is characterized by numerous skier triggered avalanches. Preliminary da...
- Object ID: issw-2006-860-867.pdf
- Keywords: buried surface hoar, skier triggered, chugach, helicopter ski
- View additional details about Skier Triggered Surface Hoar: A Discussion of Avalanche Involvements During the 2006 Valdez Chugach Helicopter Ski Season
- Title: Observations of an Increase in Slab Thickness After Fracture
- Date: 2004
- Authors: Robbie Fuller
- Description: In the fracturing of snow peripheral to avalanches and in events where slabs have
fractured but did not slide, the failed, or downslope, part of the ...
- Object ID: issw-2004-032-038.pdf
- Keywords: strain, elastic, rebound
- View additional details about Observations of an Increase in Slab Thickness After Fracture
- Title: Fracture of Layered Snow by Cohesive Zone Technique and Experiments
- Date: 2004
- Authors: S. Senthil, P. Mahajan, S.K. Joshi
- Description: One mechanism responsible for avalanche initiation is the weak bond between snow
layers. Experiments under controlled conditions at the cold lab are ...
- Object ID: issw-2004-064.pdf
- Keywords: fracture, snow layers, cohesive zone, fem
- View additional details about Fracture of Layered Snow by Cohesive Zone Technique and Experiments
- Title: A Comparison of the Spatial Patterns of Penetration Resistance of Slabs and Weak Layers
- Date: 2004
- Authors: K. Birkeland, K. Kronholm
- Description: Extended Abstract. Several studies have quantified the spatial variability of snow stability and structure on specific slopes. One consequence of such...
- Object ID: ISSW-2004-002.pdf
- Keywords: snowmicropen, persistent weak layers, spatial patterns
- View additional details about A Comparison of the Spatial Patterns of Penetration Resistance of Slabs and Weak Layers
- Title: Correlating Snow Micro-Structure with Snow Shear Strength
- Date: 2004
- Authors: Eric R. Lutz, Karl W. Birkeland, Kalle Kronholm, Kathy Hansen, Richard Aspinall
- Description: Extended Abstract. Researchers and avalanche forecasters have used an array of probes over the years to quickly analyze snow structure with the goal ...
- Object ID: ISSW-2004-008.pdf
- Keywords: snow microstructure, shear strength, stability, persistent weak layer
- View additional details about Correlating Snow Micro-Structure with Snow Shear Strength
- Title: Experiments in Layered Snow Samples Under Shear and Tension
- Date: 2004
- Authors: S.K. Joshi, S. Senthil, P. Mahajan
- Description: Avalanche release phenomenon by nature involves the failures by both tension and
shear. Clear illustration of these failure phenomena individually or...
- Object ID: issw-2004-056.pdf
- Keywords: release, fracture, homogenous, tensile, shear
- View additional details about Experiments in Layered Snow Samples Under Shear and Tension
- Title: The Effects of Slope Aspect on the Formation of Surface Hoar and Diurnally Recrystalized Near-Surface Faceted Crystals: Implications for Avalanche Forecasting
- Date: 2004
- Authors: Mike S. Cooperstein, Karl W. Birkeland, Kathy J. Hansen
- Description: This study presents evidence that slope aspect plays a significant role in the formation, size, type, and extent of surface hoar and near-surface face...
- Object ID: issw-2004-083-093.pdf
- Keywords: avalanche, avalanche forecasting, large scale spatial variability, surface hoar, diurnally recrystalized near-surface faceted crystals, temperature and vapor pressure gradients
- View additional details about The Effects of Slope Aspect on the Formation of Surface Hoar and Diurnally Recrystalized Near-Surface Faceted Crystals: Implications for Avalanche Forecasting
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