Your search for Subject fracture initiationresulted in 48 records.
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- Title: Uncertainties in Assessing the Stability of Fractured Slopes
- Date: 2006
- Authors: Karl W. Birkeland, Scott Savage, Simon Trautman, Kalle Kronholm, Spencer Logan, Jürg Schweizer
- Description: While doing avalanche mitigation work or traveling in the backcountry, occasionally a
sizable part of a slope fractures without triggering an avalanc...
- Object ID: issw-2006-029-037.pdf
- Keywords: snow stability, fracture, whumpf, avalanche release, avalanche forecasting
- View additional details about Uncertainties in Assessing the Stability of Fractured Slopes
- 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: 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: 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: 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: 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: 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: Fracture Character in Compression Tests
- Date: 2004
- Authors: Alec van Herwijnen, Bruce Jamieson
- Description: Stability tests are widely used to identify and qualify potential failure layers for slab avalanches. As an addition to stability test scores, some av...
- Object ID: issw-2004-182-191.pdf
- Keywords: stability test, avalanche forecasting, fracture initiation, fracture propagation, stability evaluation
- View additional details about Fracture Character in Compression Tests
- Title: Relating Spatial Variability to Snow Stability Using a Cellular Automaton Model Initialized with Field Data
- Date: 2004
- Authors: Kalle Kronholm, Karl W. Birkeland
- Description: This research uses a two-dimensional cellular automaton model, with inputs taken from field data, to mimic snow slab avalanche release. The initial we...
- Object ID: issw-2004-308-314.pdf
- Keywords: stochastic, avalanche release, shear strength, shear stress, fracture propagation
- View additional details about Relating Spatial Variability to Snow Stability Using a Cellular Automaton Model Initialized with Field Data
- Title: Fracture Toughness for Dry Slab Avalanches
- Date: 2002
- Authors: David M. McClung
- Description: Dry slab avalanches release by propagating shear fractures. Since alpine snow is a quasi-brittle strain softening material, it is implied that fractur...
- Object ID: issw-2002-304-306.pdf
- Keywords: fracture, dry slab avalanche
- View additional details about Fracture Toughness for Dry Slab Avalanches
- Title: Effects of an Early Season Rain Crust on Snow Pack Stability within the Continental Climate
- Date: 2002
- Authors: Dan Moroz
- Description: On January 6th and 7th, 2002, the central and northern mountains of Colorado, and
Copper Mountain ski resort, experienced a "freezing rain" weather e...
- Object ID: issw-2002-502-507.pdf
- Keywords: fracture, stability, snowpack, climate
- View additional details about Effects of an Early Season Rain Crust on Snow Pack Stability within the Continental Climate
- Title: Interpreting Fracture Character in Stability Tests
- Date: 2002
- Authors: Alec van Herwijnen, Bruce Jamieson
- Description: For at least a decade or two, some avalanche safety programs have recorded and interpreted the character of fractures in stability tests. It has been ...
- Object ID: issw-2002-514-520.pdf
- Keywords: snow stability tests, snow fracture, snow layer, avalanche forecasting
- View additional details about Interpreting Fracture Character in Stability Tests
- Title: Release and Motion of Arctic Slushflows
- Date: 1982
- Authors: Arthur Mears
- Description: Two types of slushflows studied during the spring of 1981 and 1982 in the Philip
Smith Mountains, central Brooks Range, Alaska, were (l) point failur...
- Object ID: issw-1982-003-004.pdf
- Keywords: slushflow, runoff,
- View additional details about Release and Motion of Arctic Slushflows
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