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Your search for Keyword "fracture"resulted in 80 records.

Title: A REVIEW OF AVALANCHE RELEASE MECHANISMS: FROM ANTICRACK PROPAGATION TO SUPERSHEAR FRACTURE
Date: 2026-09-28
Authors: Johan Gaume, Alec van Herwijnen, Jürg Schweizer
Description: Dry-snow slab avalanches are responsible for most avalanche fatalities, making understanding of release mechanisms essential for forecasting and hazar...
Object ID: ISSW2026_O1.1.pdf
Keywords: dry-snow slab avalanche, avalanche release, weak layer, failure initiation, crack propagation, anticrack, supershear fracture, slab fracture.
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Title: REPLICATING SLAB AVALANCHE INITIATION: A FIELD TEST FOR CONTROLLED ANTICRACK NUCLEATION
Date: 2026-09-28
Authors: Valentin Adam, Yannik Werner, Jakob Schöttner, Melin D. E. Walet, Florian Rheinschmidt, Philipp Weißgraeber, Alec van Herwijnen, Philipp L. Rosendahl
Description: Failure nucleation in slab avalanches is typically hidden beneath the snowpack, which, among other factors, makes this phenomenon so mysterious and di...
Object ID: ISSW2026_O1.2.pdf
Keywords: dry-snow slab avalanches, fracture initiation, finite fracture mechanics, release potential, stability assessment, field test
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Title: FROM FAILURE TO FRACTURE: FIELD MEASUREMENTS OF STRENGTH AND FRACTURE TOUGHNESS OF BURIED SURFACE HOAR UNDER MIXED-MODE LOADING
Date: 2026-09-28
Authors: Melin Walet, Jakob Schöttner, Valentin Adam, Florian Rheinschmidt, Philipp Weißgraeber, Philipp Rosendahl, Jürg Schweizer, Alec van Herwijnen
Description: Dry-snow slab avalanche release involves failure initiation in a weak layer followed by crack propagation. Weak layer strength describes resistance to...
Object ID: ISSW2026_O1.6.pdf
Keywords: weak layers, mixed-mode fracture toughness, multiaxial strength, field experiments, snow mechanics
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Title: Slab Fractures during Dynamic Crack Propagation in Dry-Snow Slab Avalanches
Date: 2026-09-28
Authors: Francis Meloche, Bertil Trottet, Grégoire Bobillier, Johan Gaume
Description: Predicting the size of dry-snow slab avalanches remains difficult, limiting hazard assessment despite major advances in the understanding of crack ini...
Object ID: ISSW2026_O1.7.pdf
Keywords: slab fracture, crack propagation, avalanche size, release size index
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Title: FROM WARMING TO FAILURE: TEMPERATURE EFFECTS IN SNOW-SLAB AVALANCHE RELEASE
Date: 2026-09-28
Authors: Claudia Binetti, Giuseppe Puglisi, Nicola M. Pugno
Description: Temperature is widely recognized as a key factor in snow-slab avalanche release, and field observations frequently associate warming with reduced snow...
Object ID: ISSW2026_O4.2.pdf
Keywords: snow-slab avalanche, weak layer, mode-ii fracture, temperature, statistical mechanics
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Title: WHAT IF WE ARE WRONG? RETHINKING AVALANCHE FATALITIES: TRAUMA, BURIAL PRESSURE, AND THE LIMITS OF HYPOXIA-FOCUSED MITIGATION
Date: 2026-09-28
Authors: Karsten von Hoesslin
Description: Avalanche fatality research has traditionally identified asphyxia as the leading cause of death among fully buried victims, with trauma accounting for...
Object ID: ISSW2026_P1.61.pdf
Keywords: trauma, asphyxia, hypoxia, pneumothorax, pelvic fracture, haemorrhagic shock
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Title: WHUMPING OF A PERSISTENT DEPTH HOAR WEAK LAYER: ANALYSIS OF A RARE COMBINATION OF MANUAL STABILITY TESTS AND AUTOMATED SNOW MEASUREMENTS
Date: 2026-09-28
Authors: Benjamin Walter, Christoph Marty, Fabian Wolfsperger, Alec van Herwijnen, Francesco Pellegrini, Alexandra von der Esch, Yiyao Chen, Kalin Markov
Description: Whumpf sounds indicate the collapse of a buried weak layer and are associated with fracture propagation over distances of tens of meters without avala...
Object ID: ISSW2026_P4.6.pdf
Keywords: depth hoar, persistent weak layer, whumpf, fracture propagation, snow stability
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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: EXPANDING THE KNOWLEDGE OF WEAK-LAYER FRACTURE INTO CROSS-SLOPE DIRECTION
Date: 2024-09-23
Authors: Florian Rheinschmidt, Valentin Adam, Bastian Bergfeld, Melin D. E. Walet, Jakob Schöttner, Philipp Weißgraeber, Alec van Herwijnen, Philipp L. Rosendahl
Description: Fracture toughness, a critical material parameter for assessing resistance to crack growth, has been extensively studied in weak snow layers for mode ...
Object ID: ISSW2024_O3.5.pdf
Keywords: dry-snow slab avalanches, fracture toughness, cross-slope-propagation, out-of-plane loading, weak snow layers
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Title: COMPARISON OF DIFFERENT STABILITY TESTS REGARDING THEIR UTILITY FOR SNOWPACK STABILITY ASSESSMENTS IN GUIDING OPERATIONS
Date: 2024-09-23
Authors: Anna Heuberger, Ingrid Reiweger
Description: Guiding operations in commercial helicopter skiing mostly depend on their own manual stability tests for snowpack stability assessment. With limited...
Object ID: ISSW2024_P3.10.pdf
Keywords: stability tests, fracture character, snowpack properties, test comparison
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Title: ASYMMETRICAL THREE-POINT BEND TEST FOR INVESTIGATING MIXED-MODE FRACTURE TOUGHNESS IN WELL-BONDED SNOW
Date: 2024-09-23
Authors: Valentin Adam, Florian Rheinschmidt, Melin D. E. Walet, Jakob Schöttner, Dr.-Ing. Bastian Bergfeld, Prof. Dr.-Ing. Philipp Weißgraeber, Dr. Alec van Herwijnen, Dr.-Ing. Philipp L. Rosendahl
Description: Slab fracture plays a crucial role in the release of dry-snow slab avalanches, affecting the size of the release area. However, there is a lack of fr...
Object ID: ISSW2024_P3.16.pdf
Keywords: dry-snow slab avalanches, fracture toughness, mixed-mode loading, slab fracture, bending test, finite element analysis
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Title: EXPERIMENTS ON SELF-SUSTAINED CRACK PROPAGATION IN AVALANCHES
Date: 2023-10-08
Authors: Bastian Bergfeld, Melin Walet, Alec van Herwijnen
Description: If a slab avalanche is triggered, how big will it be? This question is crucial for avalanche forecasters and backcountry travelers alike, yet it is di...
Object ID: ISSW2023_O2.02.pdf
Keywords: avalanche release, fracture mechanics, avalanche size, dynamic crack propagation, supershear
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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: INFLUENCES OF OVERLYING SLAB THICKNESS ON THE SNOW MECHANICS OF BRIDGING PROPENSITY
Date: 2023-10-08
Authors: Matthew Cecil, John Gleason, Ron Simenhois
Description: Almost all snow avalanche fatalities are human induced. Regardless of the mode of travel, moving over snow cover results in a localized dynamic load (...
Object ID: ISSW2023_P1.51.pdf
Keywords: snow mechanics, bridging propensity, particle tracking velocimetry, fracture initiation
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