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Your search for Keyword "fracture mechanics"resulted in 9 records.

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; View additional details about EXPERIMENTS ON SELF-SUSTAINED CRACK PROPAGATION IN AVALANCHES

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; View additional details about FRACTURE ENERGIES RELEVANT FOR DRY-SNOW SLAB AVALANCHE RELEASE

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; View additional details about MODE-III FRACTURE TOUGHNESS OF ANTICRACKS IN WEAK LAYERS: MODELLING AND EXPERIMENTS

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; View additional details about MODELING TOUCHDOWN AND CRACK ARREST IN PROPAGATION SAW TESTS

Title: Anti-crack nucleation in snowpacks without assuming initial defects: modeling dry snow slab avalanches: Date: 2018-10-07; Authors: Philipp L. Rosendahl, Vera LÃ¼bke, Philipp WeiÃŸgraeber; Description: To improve modeling of slab avalanche release we propose a new mechanical snowpack model and a novel criterion for anticrack nucleation. The model all...; Object ID: ISSW2018_O10.6.pdf; Keywords: slab avalanche release, fracture mechanics, predictive modeling, snowpack model; View additional details about Anti-crack nucleation in snowpacks without assuming initial defects: modeling dry snow slab avalanches

Title: Avalanche Release 101: Date: 2016-10-02; Authors: JÃ¼rg Schweizer, Benjamin Reuter, Alec van Herwijnen, Johan Gaume; Description: Our understanding of dry-snow slab avalanche release improved over the last decade â€“ 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: Field Study on Fracture Propagation in Weak Snowpack Layers: Date: 2008-09-22; Authors: Alec van Herwijnen, Joachim Heierli, Jürg Schweizer; Description: Instabilities in snow slopes generally involve the progressive fracture along a weak snowpack layer. Recent field observations on fractures in weak la...; Object ID: P__8213.pdf; Keywords: snow avalanche, avalanche release, fracture mechanics, fracture propagation; View additional details about Field Study on Fracture Propagation in Weak Snowpack Layers

Title: Slab Fracture at 1900 Frames Per Second-Experimental Methods: Date: 2008-09-22; Authors: Chris Borstad, David McClung; Description: We present high speed video images of slab fracture experiments. Slab bending tests were conducted in a cold laboratory at Rogers Pass in Glacier Nati...; Object ID: P__8197.pdf; Keywords: fracture mechanics, high speed photography; View additional details about Slab Fracture at 1900 Frames Per Second-Experimental Methods

Title: The Width of Unconfined Slab Avalanches Based on Field Measurements of Slab Properties: Date: 1990; Authors: J.B. Jamieson, C.D. Johnston; Description: Using principles of fracture mechanics, a linear elastic model of an unconfined dry slab and simplifying assumptions, expressions are derived for the ...; Object ID: issw-1990-234-244.pdf; Keywords: field measurements, fracture mechanics, starting zone; View additional details about The Width of Unconfined Slab Avalanches Based on Field Measurements of Slab Properties