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Your search for Keyword "propagation saw test"resulted in 25 records.

Title: STABILITY CHANGES AFTER WEAK LAYER COLLAPSE: INSIGHTS FROM AN UNEXPECTED DATASET
Date: 2026-09-28
Authors: Andrea Bruckmeier, Erika Birkeland, Ron Simenhois, Alex Marienthal, Erich Peitzsch, Karl W. Birkeland
Description: While conducting avalanche mitigation or traveling through the backcountry, avalanche professionals sometimes experience a "whumpf": a collapse-mode c...
Object ID: ISSW2026_O1.3.pdf
Keywords: whumpf, crack propagation, propagation saw test (pst), snowpack stability, avalanche release
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Title: USING MODIFIED PROPAGATION SAW TESTS TO TRACK INCREMENTAL CHANGES IN SNOWPACK STABILITY
Date: 2026-09-28
Authors: Itai Sheleg, Bruce Jamieson, Karl W. Birkeland, Dave Gauthier, Ron Simenhois
Description: Backcountry avalanche forecasters issue daily snowpack stability assessments to guide danger ratings and travel recommendations. Stability trends are ...
Object ID: ISSW2026_P2.12.pdf
Keywords: propagation saw test, crack propagation, snowpack stability, avalanche forecasting
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Title: HUNTING MACH CONES IN SNOW:SUPERSHEAR FRACTURE & SHOCK FRONT REFRACTION IN LAYERED SLABS
Date: 2026-09-28
Authors: Alexandre Pellet, Bastian Bergfeld, Alec van Herwijnen, Johan Gaume
Description: Supershear crack propagation has recently been identified as an important mechanism in snow slab avalanche release. In this regime, the crack in the w...
Object ID: ISSW2026_P1.16.pdf
Keywords: snow slab avalanche, crack propagation, supershear fracture, mach cone, weak layer, propagation saw test, snow stratigraphy.
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Title: A GUIDANCE FOR THE INTERPRETATION OF PROPAGATION SAW TESTS
Date: 2024-09-23
Authors: Philipp L. Rosendahl, Valentin Adam, Stephan Harvey, Bastian Bergfeld, Florian Rheinschmidt, Melin D. E. Walet, Jakob Schöttner, Alec van Herwijnen, Philipp Weißgraeber
Description: Assessing snowpack stability is crucial for determining the avalanche danger level. In this context, the propagation saw test is a valuable tool, thou...
Object ID: ISSW2024_O3.4.pdf
Keywords: dry-snow slab avalanches, fracture toughness, stability test, propagation saw test, propagation probability, real-time application
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Title: THE EFFECT OF SLOPE ANGLE ON CRITICAL CUT LENGTH MEASURED IN PROPAGATION SAW TESTS
Date: 2024-09-23
Authors: Bastian Bergfeld, Valentin Adam, Philipp L. Rosendahl, Alec van Herwijnen
Description: Assessing avalanche triggering potential requires detailed information on failure initiation and crack propagation. The propagation saw test (PST) is ...
Object ID: ISSW2024_P3.12.pdf
Keywords: stability test, propagation saw test, edge effect, failure initiation, crack propagation
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Title: FRACTURE ENERGIES RELEVANT FOR DRY-SNOW SLAB AVALANCHE RELEASE
Date: 2023-10-08
Authors: Bastian Bergfeld, Alec van Herwijnen, Gregoire Bobilier, Jürg Schweizer
Description: In our current understanding of dry-snow slab avalanche release, the crack propagation phase is composed of two parts: first, the onset of crack propa...
Object ID: ISSW2023_P1.47.pdf
Keywords: avalanche release, fracture mechanics, weak layer properties, propagation saw test
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Title: MODE-III FRACTURE TOUGHNESS OF ANTICRACKS IN WEAK LAYERS: MODELLING AND EXPERIMENTS
Date: 2023-10-08
Authors: Florian Rheinschmidt, Valentin Adam, Melin Walet, Jakob Schöttner, Bastian Bergfeld, Alec van Herwijnen, Philipp Weißgraeber, Philipp L. Rosendahl
Description: We propose an experimental setup and a closed-form model to identify the mode III fracture toughness of weak layers. The field experiment draws inspir...
Object ID: ISSW2023_P1.60.pdf
Keywords: fracture mechanics, propagation saw test, cross-slope anticrack propagation
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Title: MODELING TOUCHDOWN AND CRACK ARREST IN PROPAGATION SAW TESTS
Date: 2023-10-08
Authors: Johannes Schneider, Florian Rheinschmidt, Bastian Bergfeld, Grégoire Bobillier, Alec van Herwijnen, Philipp Weißgraeber, Philipp L. Rosendahl
Description: We show that slab touchdown causes a decrease in energy release rate, which can lead to crack arrest in propagation saw tests. To this end, we develop...
Object ID: ISSW2023_P1.61.pdf
Keywords: snowpack stability, propagation saw test, crack arrest, fracture mechanics, predictive modeling
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Title: THE EFFECT OF PROPAGATION SAW TEST GEOMETRIES ON CRITICAL CUT LENGTH
Date: 2023-10-08
Authors: Bastian Bergfeld, Karl Birkeland, Valentin Adam, Philipp L. Rosendahl, Alec van Herwijnen
Description: Information on failure initiation and crack propagation is essential for assessing avalanche triggering potential. The Propagation Saw Test (PST) is a...
Object ID: ISSW2023_P3.20.pdf
Keywords: stability test, propagation saw test, edge effect, failure initiation
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Title: Snowpack stabilization following storms: Field experiments and modelling of temporal changes in snow mechanical properties following loading
Date: 2018-10-07
Authors: Karl W. Birkeland, Alec van Herwijnen, Benjamin Reuter, Bastian Bergfeld
Description: Most dry slab avalanches occur during or immediately following loading by snowfall or winddeposition. In the absence of further loading avalanche acti...
Object ID: ISSW2018_O10.2.pdf
Keywords: avalanche, fracture, loading, slab, particle tracking velocimetry, propagation saw test
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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
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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
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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
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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
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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.
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