Your search for Subject fracture propagationresulted in 69 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: 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: 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: 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: 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: 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: The Effect of Slope-Scale Spatial Variability of Slab Characteristics on Propagation Saw Tests
- Date: 2016-10-02
- Authors: Chris Bilbrey, Jordy Hendrikx, Karl Birkeland, Stuart Challender, J. Andrew Gleason
- Description: Understanding propagation in complex, non-uniform terrain is critically important for avalanche forecasting and mitigation. Currently we do not know h...
- Object ID: ISSW16_P1.45.pdf
- Keywords:
- View additional details about The Effect of Slope-Scale Spatial Variability of Slab Characteristics on Propagation Saw Tests
- 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: 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: Uncut Column Stability Tests For Hard Slab Snow Conditions
- Date: 2013-10-07
- Authors: Wesley R. Farnsworth, Markus Eckerstorfer
- Description: This study aims to better understand a slabs influence on the mechanics of artificial
avalanches. It seems that stability tests do not represent stab...
- Object ID: ISSW13_paper_O2-01.pdf
- Keywords: slab properties, propagation saw test, hard slab, uncut columns
- View additional details about Uncut Column Stability Tests For Hard Slab Snow Conditions
- 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: Edge Effects In Propagation Tests
- Date: 2013-10-07
- Authors: Edward H. Bair, Ron Simenhois, Alec van Herwijnen, Karl Birkeland
- Description: Guidelines suggest beams with lengths around 1 m for Extended Column Tests (ECTs) and Propagation Saw Tests (PSTs). The longest unstable tests publish...
- Object ID: ISSW13_paper_O5-02.pdf
- Keywords: crack propagation, extended column test, propagation saw test
- View additional details about Edge Effects In Propagation Tests
- Title: Slab Avalanche Crown Surface Fractography: Observations and Applications
- Date: 2012
- Authors: Dave Gauthier
- Description: Fractography is the study of the morphological fracture surface features in artificial and natural materials, including bone and rock. Several pattern...
- Object ID: issw-2012-115-120.pdf
- Keywords: crack propagation, fracture-line, crowns
- View additional details about Slab Avalanche Crown Surface Fractography: Observations and Applications
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