Your search for Subject weak layer fractureresulted in 115 records.
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- Title: The Role of Collapse in Avalanche Release: Review and Implications for Practitioners and Future Research
- Date: 2016-10-02
- Authors: Edward Bair, Johan Gaume, Alec van Herwijnen
- Description: Reports of collapses and whumpfing sounds and their links to instability in the snowpack have been around for decades, but like many areas of snow sci...
- Object ID: ISSW16_O1.04.pdf
- Keywords: fracture, collapse, anticrack, extended column test, propagation saw test
- View additional details about The Role of Collapse in Avalanche Release: Review and Implications for Practitioners and Future Research
- Title: A New Crack Propagation Criterion for Skier-Triggered Snow Slab Avalanches
- Date: 2016-10-02
- Authors: Johan Gaume, Benjamin Reuter, Alec van Herwijnen, Jürg Schweizer
- Description: Dry-snow slab avalanches begin with a local failure in a weak snowpack layer buried below cohesive slab layers. If the size of the failed zone exceeds...
- Object ID: ISSW16_P1.01.pdf
- Keywords: snow avalanche, skier-triggering, failure initiation, crack propagation, pst, slab, weak layer
- View additional details about A New Crack Propagation Criterion for Skier-Triggered Snow Slab Avalanches
- Title: Wet-Snow Fracture Propagation
- Date: 2016-10-02
- Authors: Ingrid Reiweger, Markus Zöchling, Martin Forster, Thomas Wiesinger, Christoph Mitterer
- Description: Fracture propagation within wet snow is a key issue in order to understand and predict wet-snow slab avalanches. In our preliminary field study we inv...
- Object ID: ISSW16_P1.33.pdf
- Keywords: wet snow, fracture propagation, wet-snow avalanches, propagation saw test
- View additional details about Wet-Snow Fracture Propagation
- Title: Micromechanical Analysis of Energy Release in Snow Fracture
- Date: 2016-10-02
- Authors: Anthony M. LeBaron, Daniel A. Miller
- Description: Fracture initiation and propagation in snow is paramount to understanding the avalanche process. There is ongoing discussion and debate regarding the ...
- Object ID: ISSW16_P1.34.pdf
- Keywords: fracture, energy release rate
- View additional details about Micromechanical Analysis of Energy Release in Snow Fracture
- Title: Extended Column Test: Repeatability and Comparison to Slope Stability and the Rutschblock
- Date: 2016-10-02
- Authors: Frank Techel, Matthias Walcher, Kurt Winkler
- Description: Information on snow stability is key information when assessing the avalanche situation. However, stability tests like the Extended Column Test (ECT) ...
- Object ID: ISSW16_P4.08.pdf
- Keywords: extended column test, rutschblock, test repeatability, snow stability, fracture propagation
- View additional details about Extended Column Test: Repeatability and Comparison to Slope Stability and the Rutschblock
- Title: Assessing Weak Layer Failure and Changes in Snowpack Properties Due to Avalanche Control By Explosives
- Date: 2013-10-07
- Authors: Stephan Simioni, Jurg Schweizer
- Description: Avalanche control by explosives is among the key temporary preventive measures and today fixed avalanche control installations are widely used. Hither...
- Object ID: ISSW13_paper_O1-13.pdf
- Keywords: snow properties, avalanche control, explosives, weak layer failure
- View additional details about Assessing Weak Layer Failure and Changes in Snowpack Properties Due to Avalanche Control By Explosives
- Title: On How to Measure Snow Mechanical Properties Relevant to Slab Avalanche Release
- Date: 2013-10-07
- Authors: Benjamin Reuter, Martin Proksch, Henning Loewe, Alec van Herwijnen, Jürg Schweizer
- Description: The release of a slab avalanche is preceded by a sequence of fractures. The main
material properties relevant for the fracture processes are the spec...
- Object ID: ISSW13_paper_O2-02.pdf
- Keywords: snow microstructure, snow mechanical properties, snow fracture, snow stability evaluation, avalanche release
- View additional details about On How to Measure Snow Mechanical Properties Relevant to Slab Avalanche Release
- Title: Weak-Layer Spatial Variability as a Possible Trigger of Slab Tensile Failure
- Date: 2013-10-07
- Authors: Johan Gaume, Guillaume Chambon, Nicolas Eckert, Mohamed Naaim
- Description: The evaluation of the location of slab tensile failure represents an important concern for the evaluation of the extent of avalanche release zones and...
- Object ID: ISSW13_paper_O2-03.pdf
- Keywords: snow avalanche, avalanche release, slab, weak layer, spatial variability, tensile failure
- View additional details about Weak-Layer Spatial Variability as a Possible Trigger of Slab Tensile Failure
- Title: The Systematic Snow Cover Diagnosis: A Process-Based Approach for Avalanche Danger Assessment
- Date: 2013-10-07
- Authors: Georg Kronthaler, Christoph Mitterer, Bernd Zenke, Michael Lehning
- Description: Recreationists and local avalanche warning services face often the problem of assessing the avalanche danger for a single slope or avalanche path. How...
- Object ID: ISSW13_paper_O4-11.pdf
- Keywords: slope stability, snow cover test, weak layer
- View additional details about The Systematic Snow Cover Diagnosis: A Process-Based Approach for Avalanche Danger Assessment
- Title: Comparison of Structural Instability Indices (Lemons), ECT and RB Results
- Date: 2013-10-07
- Authors: Chiambretti Igor, Fabiano Monti, Mauro Valt
- Description: Almost all avalanche forecasting services have a network of traditional stations where an array of daily or weekly snowpack measurement or observation...
- Object ID: ISSW13_paper_O5-03.pdf
- Keywords: rb, ect, structural instability indices
- View additional details about Comparison of Structural Instability Indices (Lemons), ECT and RB Results
- Title: Weather Preceding Persistent Deep Slab Avalanches
- Date: 2013-10-07
- Authors: Michael Conlan, Bruce Jamieson
- Description: Deep slab avalanches release on persistent weak layers of facets, surface hoar, depth hoar, or poorly bonded crusts and are generally hard to forecast...
- Object ID: ISSW13_paper_P1-01.pdf
- Keywords: deep slab avalanche, persistent weak layer, weather, natural, localized dynamic load
- View additional details about Weather Preceding Persistent Deep Slab Avalanches
- Title: Modeling a Fluid/Solid Transition in Snow Weak Layers Application to Snow Avalanche Release
- Date: 2013-10-07
- Authors: François Louchet, Alain Duclos, Stephane Caffo
- Description: A transition between solid and a fluid-like phases was evidenced and studied in the
material made of loose ice crystals involved in snow avalanche re...
- Object ID: ISSW13_paper_P1-11.pdf
- Keywords: slab, triggering, weak layer, collapse, shear, whumpf
- View additional details about Modeling a Fluid/Solid Transition in Snow Weak Layers Application to Snow Avalanche Release
- Title: A Relative Difference Approach to Detect Potential Weak Layers Within a Snow Profile
- Date: 2013-10-07
- Authors: Fabiano Monti, Jürg Schweizer
- Description: Reducing the subjectivity of stability evaluation derived from snow profiles and increasing the spatial and temporal resolution of snow stratigraphy i...
- Object ID: ISSW13_paper_P1-30.pdf
- Keywords: snow stratigraphy, snow profile, snow stability evaluation
- View additional details about A Relative Difference Approach to Detect Potential Weak Layers Within a Snow Profile
- Title: Experiences from a Heavy Avalanche Season 2013, Caused by a Weak Snow Layer, and Leading to Several Road Closures in Northern Norway
- Date: 2013-10-07
- Authors: Silje S. Haaland, Jeanette Kvalvaagnes, Ole-André Helgaas
- Description: During the last week of March and first days of April 2013 a significant large number of avalanches hit roads and cut off all infrastructures to sever...
- Object ID: ISSW13_paper_P1-58.pdf
- Keywords: snowpack, avalanche, weak layers, norway
- View additional details about Experiences from a Heavy Avalanche Season 2013, Caused by a Weak Snow Layer, and Leading to Several Road Closures in Northern Norway
- Title: Testing a New Shear Loading Apparatus for In-Situ Studies of Weak Snow Layers
- Date: 2013-10-07
- Authors: Evgeny A. Podolskiy, Monica Barbero, Fabrizio Barpi, Mauro Borri-Brunetto, Oronzo Pallara, Barbara Frigo, Bernardino Chiaia, Guillaume Chambon, Mohamed Naaim
- Description: Here we show preliminary results of shear tests carried out with a new shear test apparatus designed and constructed by Politecnico di Torino, DISEG (...
- Object ID: ISSW13_paper_P2-27.pdf
- Keywords: snow, mechanics, instrument, weak layer, avalanche
- View additional details about Testing a New Shear Loading Apparatus for In-Situ Studies of Weak Snow Layers
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