Estimating the effective elastic modulus and specific fracture energy of snowpack layers from field experiments

A Van Herwijnen, J Gaume, EH Bair, B Reuter… - Journal of …, 2016 - cambridge.org
Measurements of the mechanical properties of snow are essential for improving our
understanding and the prediction of snow failure and hence avalanche release. We …

Modeling of crack propagation in weak snowpack layers using the discrete element method

J Gaume, A van Herwijnen, G Chambon… - The …, 2015 - tc.copernicus.org
Dry-snow slab avalanches are generally caused by a sequence of fracture processes
including (1) failure initiation in a weak snow layer underlying a cohesive slab,(2) crack …

Describing snow instability by failure initiation, crack propagation, and slab tensile support

B Reuter, J Schweizer - Geophysical Research Letters, 2018 - Wiley Online Library
Snow instability is a generic term describing the propensity of a snow slope to avalanche. In
need of a concise mechanics‐based concept we suggest a framework based on failure …

[HTML][HTML] Width of surface rupture zone for thrust earthquakes: implications for earthquake fault zoning

P Boncio, F Liberi, M Caldarella… - Natural Hazards and …, 2018 - nhess.copernicus.org
The criteria for zoning the surface fault rupture hazard (SFRH) along thrust faults are defined
by analysing the characteristics of the areas of coseismic surface faulting in thrust …

Temporal evolution of crack propagation characteristics in a weak snowpack layer: conditions of crack arrest and sustained propagation

B Bergfeld, A van Herwijnen… - … Hazards and Earth …, 2022 - nhess.copernicus.org
For a slab avalanche to release, the system, consisting of a weak layer below a cohesive
slab, must facilitate crack propagation over large distances–a process we call dynamic crack …

[PDF][PDF] Avalanche release 101

J Schweizer, B Reuter, A van Herwijnen… - Proceedings …, 2016 - avalanchecourse.com
Our understanding of dry-snow slab avalanche release improved over the last decade–not
the least by consistently following a fracture mechanical approach. Whether we consider …

[HTML][HTML] Temporal changes in the mechanical properties of snow related to crack propagation after loading

KW Birkeland, A van Herwijnen, B Reuter… - Cold Regions Science …, 2019 - Elsevier
Most dry slab avalanches occur during or immediately following loading by snowfall or wind
deposition. In the absence of further loading avalanche activity decreases over time. This …

[HTML][HTML] Assessing snow instability in skier-triggered snow slab avalanches by combining failure initiation and crack propagation

J Gaume, B Reuter - Cold Regions Science and Technology, 2017 - Elsevier
Dry-snow slab avalanches start with a local failure in a weak snowpack layer buried below
cohesive snow slab layers. If the size of the failed zone exceeds a critical size, rapid crack …

Influence of weak layer heterogeneity and slab properties on slab tensile failure propensity and avalanche release area

J Gaume, G Chambon, N Eckert, M Naaim… - The …, 2015 - tc.copernicus.org
Dry-snow slab avalanches are generally caused by a sequence of fracture processes,
including failure initiation in a weak snow layer underlying a cohesive slab followed by crack …

Temporal evolution of crack propagation propensity in snow in relation to slab and weak layer properties

J Schweizer, B Reuter, A van Herwijnen… - The …, 2016 - tc.copernicus.org
If a weak snow layer below a cohesive slab is present in the snow cover, unstable snow
conditions can prevail for days or even weeks. We monitored the temporal evolution of a …