Your search for Keyword "propagation"resulted in 79 records.
Back to Home page
View previous 15 results View next 15 results
- Title: Using a High-Resolution Particle Tracking Method to Analyze Extended Column Tests
- Date: 2018-10-07
- Authors: Arden Feldman, Ladean R. McKittrick, Edward E. Adams
- Description: The Extended Column Test (ECT) has become a very popular tool for assessing snowpack stability, yet its mechanics are still not well understood. Using...
- Object ID: ISSW2018_P10.3.pdf
- Keywords: collapse, shear, crack propagation, particle tracking, extended column test
- View additional details about Using a High-Resolution Particle Tracking Method to Analyze Extended Column Tests
- Title: Modelling the propagation saw test with discrete elements
- Date: 2018-10-07
- Authors: Grégoire Bobillier, Johan Gaume, Alec van Herwijnen, Jürg Dual, Jürg Schweizer
- Description: Dry-snow slab avalanche release is a multi-scale fracture process. It starts with the formation of a localized failure in a highly porous weak snow la...
- Object ID: ISSW2018_P10.23.pdf
- Keywords: dry-snow slab avalanche, discrete element method, crack propagation
- View additional details about Modelling the propagation saw test with discrete elements
- Title: Critical Length for the Onset of Crack Propagation in Snow: Reconciling Shear and Collapse
- Date: 2016-10-02
- Authors: Johan Gaume, Alec van Herwijnen, Guillaume Chambon, Nander Wever, Jürg Schweizer
- Description: The failure of a weak snow layer buried below cohesive slab layers is a necessary, but insufficient condition for the release of a dry-snow slab avala...
- Object ID: ISSW16_O1.02.pdf
- Keywords: snow avalanche, crack propagation, critical length, slope angle, pst, slab, weak layer
- View additional details about Critical Length for the Onset of Crack Propagation in Snow: Reconciling Shear and Collapse
- Title: The Effect of Increasing Load on Weak Layer Fracture
- Date: 2016-10-02
- Authors: Karl W. Birkeland, Alec van Herwijnen
- Description: Avalanches failing on buried weak layers tend to be easier to trigger during or immediately following snowfall, suggesting that loading favorably chan...
- Object ID: ISSW16_O1.03.pdf
- Keywords: fracture, loading, slab, particle tracking velocimetry, propagation saw test
- View additional details about The Effect of Increasing Load on Weak Layer Fracture
- 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: Observer Independent Measures of Snow Instability
- Date: 2016-10-02
- Authors: Benjamin Reuter, Jürg Schweizer, Alec van Herwijnen
- Description: Observer independent measures of snow instability are a prerequisite for modeling, verifying and improving avalanche forecasts. However, presently no ...
- Object ID: ISSW16_O17.02.pdf
- Keywords: snow instability, avalanche forecasting, snow micro-penetrometer, avalanche initiation, crack propagation, tensile strength, finite element modeling
- View additional details about Observer Independent Measures of Snow Instability
- 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: A New Mechanical Framework to Interpret Weak Layer and Slab Fracture in the Propagation Saw Test
- Date: 2016-10-02
- Authors: Lorenzo Benedetti, Jan-Thomas Fischer, Johan Gaume
- Description: This work aims to provide a mechanical model for the Propagation Saw Test (PST) based on the Euler-Bernoulli beam, allowing a description of the slab ...
- Object ID: ISSW16_P3.01.pdf
- Keywords: fracture, critical length, propagation length, mechanical model
- View additional details about A New Mechanical Framework to Interpret Weak Layer and Slab Fracture in the Propagation Saw Test
- 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: Using Large Column Tests to Successfully Forecast Persistent Deep Slab Avalanches in the Central Sierra Nevada Mountains
- Date: 2016-10-02
- Authors: Brandon Schwartz, Andy Anderson
- Description: Forecasting of Persistent Deep Slab avalanches presents a unique and at times difficult problem for Backcountry Regional Forecasters, Guide Services, ...
- Object ID: ISSW16_P4.26.pdf
- Keywords: avalanche forecasting, persistent deep slab, propagation saw test (pst), extended column test (ect), sierra nevada
- View additional details about Using Large Column Tests to Successfully Forecast Persistent Deep Slab Avalanches in the Central Sierra Nevada Mountains
- Title: Changes in Extended Column Test Results with Varying Depths
- Date: 2016-10-02
- Authors: Ian Hoyer, Ethan Greene, Doug Chabot, Karl W. Birkeland
- Description: Knowing the Extended Column Test's (ECT's) effectiveness at different slab thicknesses is critically important for practitioners. To better understand...
- Object ID: ISSW16_P4.29.pdf
- Keywords: extended column test, snowpack test, propagation
- View additional details about Changes in Extended Column Test Results with Varying Depths
- Title: Avalanche Release 101
- Date: 2016-10-02
- Authors: Jürg Schweizer, Benjamin Reuter, Alec van Herwijnen, Johan Gaume
- Description: Our understanding of dry-snow slab avalanche release improved over the last decade – not the least by consistently following a fracture mechani...
- Object ID: ISSW16_O1.01.pdf
- Keywords: snow failure, failure initiation, crack propagation, avalanche formation, avalanche release, fracture mechanics
- View additional details about Avalanche Release 101
- Title: Discrete Element Modeling of Crack Propagation in Weak Snowpack Layers
- Date: 2014-09-29
- Authors: Johan Gaume, Alec van Herwijnen, Jürg Schweizer, Guillaume Chambon, Karl W. Birkeland
- Description: Dry-snow slab avalanches are generally caused by a sequence of fracture processes including (1) failure initiation in a weak snow layer underlying a c...
- Object ID: ISSW14_paper_O6.02.pdf
- Keywords: snow avalanche, crack propagation, pst, discrete element modeling, slab, weak layer
- View additional details about Discrete Element Modeling of Crack Propagation in Weak Snowpack Layers
- Title: What Do Longer Tests Tell Us About Fracture and Stability?
- Date: 2014-09-29
- Authors: Edward H. Bair, Ron Simenhois, Alec van Herwijnen, Karl Birkeland
- Description: Extended Column Tests (ECT) and Propagation Saw Tests (PST) are used to assess crack propagation; that is, the likelihood of a crack self-propagating....
- Object ID: ISSW14_paper_O7.03.pdf
- Keywords: stability tests, extended column test, propagation saw test, fracture.
- View additional details about What Do Longer Tests Tell Us About Fracture and Stability?
View previous 15 results View next 15 results
Back to Home page