Articles with "normal stress" as a keyword



Characteristics of Asperity Damage and Its Influence on the Shear Behavior of Granite Joints

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Published in 2017 at "Rock Mechanics and Rock Engineering"

DOI: 10.1007/s00603-017-1315-y

Abstract: Surface roughness significantly affects the shear behavior of rock joints; thus, studies on the asperity damage characteristics and its influence on the shear behavior of joints are extremely important. In this paper, shear tests were… read more here.

Keywords: asperity damage; normal stress; shear behavior; damage ... See more keywords

An Improved 3D Finite Difference Model for Simulation of Double Shield TBM Tunnelling in Heavily Jointed Rock Masses: the DXL Tunnel Case

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Published in 2019 at "Rock Mechanics and Rock Engineering"

DOI: 10.1007/s00603-018-1730-8

Abstract: List of symbols Ff Thrust force to overcome friction (MN) Fn Cutterhead thrust force (MN) Fr Required thrust force (MN) R Tunnel radius (m) H Major horizontal principal stress (MPa) h Minor horizontal principal stress… read more here.

Keywords: mpa component; stress mpa; stress; normal stress ... See more keywords

Stress distribution and deflection of symmetric tapered beams

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Published in 2025 at "Acta Mechanica"

DOI: 10.1007/s00707-025-04243-7

Abstract: This paper discusses stress distributions and deflections of tapered beams. Assuming the elementary axial stress distribution and applying Jourawski theory, the shear stress is calculated. In an analogous manner, the transverse normal stress is computed.… read more here.

Keywords: normal stress; transverse normal; stress; stress distribution ... See more keywords

Long-term prognostic value of low-dose normal stress-only myocardial perfusion imaging by wide beam reconstruction: A competing risk analysis

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Published in 2018 at "Journal of Nuclear Cardiology"

DOI: 10.1007/s12350-018-1373-x

Abstract: Background A normal stress myocardial perfusion single-photon emission computed tomography (MPS) is associated with a good clinical outcome. New iterative algorithms, such as wide beam reconstruction (WBR), which improve image interpretation with half-dose or half-time… read more here.

Keywords: low dose; long term; analysis; dose normal ... See more keywords

Numerical analysis on effect of annealing mc-Si ingot grown by DS process for PV application

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Published in 2017 at "Applied Surface Science"

DOI: 10.1016/j.apsusc.2017.02.077

Abstract: Abstract Silicon solar cells play a crucial role in Photo voltaic (PV) application. We have numerically investigated thermal stress and normal stress components (Sigma 11, Sigma 22, Sigma 33 and sigma 12) by using finite… read more here.

Keywords: thermal stress; sigma sigma; effect; application ... See more keywords

Direct shear behavior of sulfate-exposed shotcrete: Experimental and modelling research

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Published in 2019 at "Construction and Building Materials"

DOI: 10.1016/j.conbuildmat.2019.03.229

Abstract: Abstract Direct shear tests were carried out on sulfate-exposed and non-exposed shotcrete specimens to study the shear mechanical behaviors, taking into account the effects of normal stress and exposure time. The shotcrete mixtures with different… read more here.

Keywords: shotcrete specimens; sulfate exposed; direct shear; normal stress ... See more keywords

Tectonic tremor as friction-induced inertial vibration

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Published in 2021 at "Earth and Planetary Science Letters"

DOI: 10.1016/j.epsl.2021.117238

Abstract: Abstract Slow slip events are often accompanied by tremor but how tremor is generated is yet elusive. In this study, we test the possibility that it is an inertial vibration. In the case of a… read more here.

Keywords: vibration; inertial vibration; rate; tremor ... See more keywords
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Experimental study of impact of shearing velocity and effective normal stress on post-shearing permeability evolution of silica fault gouges

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Published in 2020 at "Tectonophysics"

DOI: 10.1016/j.tecto.2020.228521

Abstract: Abstract Fault permeability is an important parameter for understanding the occurrence of natural hazards and evaluation of natural gas and oil reservoirs. In this study, effects of shear velocity on the permeability perpendicular to the… read more here.

Keywords: fault; velocity; permeability; effective normal ... See more keywords
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Normal stress differences in dense suspensions

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Published in 2018 at "Journal of Fluid Mechanics"

DOI: 10.1017/jfm.2018.743

Abstract: The presence and the microscopic origin of normal stress differences in dense suspensions under simple shear flows are investigated by means of inertialess particle dynamics simulations, taking into account hydrodynamic lubrication and frictional contact forces.… read more here.

Keywords: dense suspensions; stress differences; stress; differences dense ... See more keywords
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Large Network Swelling and Solvent Redistribution Are Necessary for Polymer Gels to Show Negative Normal Stress

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Published in 2017 at "ACS Macro Letters"

DOI: 10.1021/acsmacrolett.7b00153

Abstract: We use a statistical thermodynamic model to theoretically predict the normal stress of a polymer gel, which is twisted by a rotational rheometer in the parallel plate geometry. This theory predicts that the normal stress… read more here.

Keywords: network; negative normal; polymer gels; stress ... See more keywords

Numerical study on the evolution characteristics of contact and fluid flow in shear-induced rough joint

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Published in 2024 at "Scientific Reports"

DOI: 10.1038/s41598-024-82008-3

Abstract: In order to investigate the influence of shear on contact characteristics and fluid flow evolution of rough rock fractures, a series of shear-flow tests were carried out by numerical experiments. Firstly, a sandstone specimen with… read more here.

Keywords: normal stress; evolution; fracture; shear displacement ... See more keywords