Results 31 to 40 of about 6,224,992 (291)

Boundary Layers in Weak Solutions of Hyperbolic Conservation Laws [PDF]

open access: yesArchive for Rational Mechanics and Analysis, 1999
This paper is concerned with the initial-boundary value problem for a nonlinear hyperbolic system of conservation laws. We study the boundary layers that may arise in approximations of entropy discontinuous solutions. We consider both the vanishing viscosity method and finite difference schemes (Lax-Friedrichs type schemes, Godunov scheme).
Joseph, K. T., LeFloch, P. G.
openaire   +3 more sources

A Weak Layer in the Mantle? [PDF]

open access: yesGeophysical Journal International, 1937
Summary The paper discusses the effect of a weak layer in the upper mantle on the deformation of the crust arising from atmospheric loading, and on the isostatic compensation process. It also points out that S phases with periods of I second are much more strongly damped than S phases with periods of 10 seconds or more, and than P phases with short ...
openaire   +2 more sources

Analysis of the Finite Element Strength Reduction Method to Slope Stability with a thin weak layer

open access: yesIOP Conference Series: Earth and Environment, 2020
The strength of the weak layer not only controls the instability mechanism of the slope, but also the factor of safety to the slope. Studying the stability of the weak layer slope has important theoretical significance and practical engineering value ...
Hongming Luo   +4 more
semanticscholar   +1 more source

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

open access: yesNatural Hazards and Earth System Sciences, 2023
. For a slab avalanche to release, we need sustained crack propagation in a weak snow layer beneath a cohesive snow slab – a process we call dynamic crack propagation. Field measurements on crack propagation are very scarce.
Bastian Bergfeld   +7 more
semanticscholar   +1 more source

Study on instability mode of double weak layer burnt rock slope

open access: yesMeikuang Anquan, 2022
In order to study the failure mode of double weak layer slope of burnt rock in opencast coal mine, the failure and deformation characteristics of the slope were analyzed by means of FLAC3D numerical simulation, and the mechanical model of the slope was ...
LI Wei
doaj   +1 more source

Modeling snow slab avalanches caused by weak-layer failure – Part 2: Coupled mixed-mode criterion for skier-triggered anticracks

open access: yes, 2020
. Using the analytical model presented in Part 1 of this two-part paper, a new conceptual understanding of anticrack nucleation in weak layers is proposed.
P. Rosendahl, P. Weißgraeber
semanticscholar   +1 more source

Sensitivity of modeled snow stability data to meteorological input uncertainty [PDF]

open access: yesNatural Hazards and Earth System Sciences, 2020
To perform spatial snow cover simulations for numerical avalanche forecasting, interpolation and downscaling of meteorological data are required, which introduce uncertainties.
B. Richter   +3 more
doaj   +1 more source

Stability analysis of cut slope with shear band propagation along a weak layer

open access: yes, 2020
Retrogressive spreading failure occur frequently in sensitive clay deposits due to triggering such as gradual natural erosion and degradation or artificial cut. The large scale of failure observed in retrogressive landslides have been attributed to quasi-
Wangcheng Zhang, Dong Wang
semanticscholar   +1 more source

Stress Concentrations in Weak Snowpack Layers and Conditions for Slab Avalanche Release

open access: yesGeophysical Research Letters, 2018
Dry‐snow slab avalanches release due to the formation of a crack in a weak layer buried below cohesive snow slabs, followed by rapid crack propagation.
J. Gaume   +3 more
doaj   +1 more source

Experimental Study on the Effect of Eccentric Loads on the Bearing Capacity of Strip Footing Located on the Inclined Multi-Layer Soil Mass with a Weak Soil Layer [PDF]

open access: yesAUT Journal of Modeling and Simulation, 2023
Engineers often face challenges when designing foundations that are located over and near the slopes. By using a new small-scale laboratory model, the Effect of eccentric loading on the bearing capacity of a strip footing located on the inclined multi ...
Majid Kianpour   +3 more
doaj   +1 more source

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