Results 31 to 40 of about 2,740,663 (398)

Shear zones in granular media: 3D Contact Dynamics simulation [PDF]

open access: yesPhys. Rev. E 76, 051301 (2007), 2007
Shear zone formation is investigated in slow 3D shear flows. We simulate the linear version of the split-bottom shear cell. It is shown that the same type of wide shear zones is achieved in the presence as well as in the absence of gravity. We investigate the relaxation of the material towards a stationary flow and analyze the stress and the velocity ...
arxiv   +1 more source

Strain Partitioning along Terrane Bounding and Intraterrane Shear Zones: Constraints from a Long-Lived Transpressional System in West Gondwana (Ribeira Belt, Brazil)

open access: yesLithosphere, 2022
Shear zones are zones of localized high strain accommodating differential motion in the lithosphere and impacting the crustal rheology and deformational history of orogenic belts.
F. M. Faleiros   +11 more
doaj   +1 more source

Load transfer mechanism and critical length of anchorage zone for anchor bolt.

open access: yesPLoS ONE, 2020
The length of anchorage zone of an anchor bolt affects the distribution of axial force and shear stress therein. Based on a shear-displacement model, the load distribution of anchor bolts in the elastic deformation stage was analysed.
Xingliang Xu, Suchuan Tian
doaj   +1 more source

Analysis of Location of Villages in Relation to Rupture Zone (Case Study: North Qazvin Fault) [PDF]

open access: yesمسکن و محیط روستا, 2021
This paper studies the shear zone of North Qazvin fault and investigates the location of rural settlements in this area. In selected sections, the presence of transverse valleys along the fault made it possible to investigate the evidence of shear zones ...
Saeed Mohammad Sabouri   +3 more
doaj  

Snell's Law for Shear Zone Refraction in Granular Materials [PDF]

open access: yesPhys. Rev. Lett. 103, 108301 (2009), 2009
We present experiments on slow shear flow in a split-bottom linear shear cell, filled with layered granular materials. Shearing through two different materials separated by a flat material boundary is shown to give narrow shear zones, which refract at the material boundary in accordance with Snell's law in optics.
arxiv   +1 more source

An analytic interface dynamo over a shear layer of finite depth [PDF]

open access: yes, 2010
Parker's analytic Cartesian interface dynamo is generalized to the case of a shear layer of finite thickness and low resistivity ("tachocline"), bounded by a perfect conductor ("radiative zone") on the one side, and by a highly diffusive medium ...
A. Kerekes   +6 more
core   +2 more sources

The Capo Castello Shear Zone (Eastern Elba Island): Deformation at the Contact between Oceanic and Continent Tectonic Units

open access: yesGeosciences, 2020
Low-grade mylonitic shear zones are commonly characterized by strain partitioning, with alternating low strain protomylonite and high strain mylonite and ultramylonite, where the shearing is most significant. In this paper the capo Castello shear zone is
Caterina Bianco
doaj   +1 more source

THE ANALYSIS OF THE STRAIN STATE OF SHEAR ZONES IN TERMS OF  TYPES OF SECONDARY FRACTURES: STATEMENT OF PROBLEM

open access: yesГеодинамика и тектонофизика, 2015
Introduction. In this publication, shear zones, being traditional objects of tectonophysical studies, are considered in terms of their strain states. This approach differs from a commonly applied one when shear zones are studied with consideration of ...
Fyodor L. Yakovlev
doaj   +1 more source

Shear Strength Characteristics of Clay-Gravel Layer and Its Slope Failure Law and Mechanism

open access: yesFrontiers in Earth Science, 2022
The Anqing Formation clay-gravel layer is widely distributed in the Anqing area of the upper reaches of the Wanjiang River. It is a typical soil-rock mixture composed of gravel and clay.
Zhangjun Dai   +6 more
doaj   +1 more source

Shear Zones in granular materials: Optimization in a self-organized random potential [PDF]

open access: yesPhys. Rev. E 75, 011305 (2007), 2006
We introduce a model to describe the wide shear zones observed in modified Couette cell experiments with granular material. The model is a generalization of the recently proposed approach based on a variational principle. The instantaneous shear band is identified with the surface that minimizes the dissipation in a random potential that is biased by ...
arxiv   +1 more source

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