Results 221 to 230 of about 12,299 (255)
Some of the next articles are maybe not open access.
Unstable Crack Growth in Hydraulic Fracturing: The Combined Effects of Pressure and Shear Stress for a Power-Law Fluid [PDF]
Engineering Fracture Mechanics, 2020 Abstract The underlying mechanisms of hydraulic fracturing remain elusive, and the optimization of the related processes for rocks of low permeability is challenging. There exists local crack closure induced by shear stress, which is one of the crack instabilities for a straight crack. In this study, we develop a full-stress model, which includes the
Fuqian Yang, Ya-Pu Zhao, Wenhao Shen
exaly +2 more sources
Pressure and Shear Stress Caused by Raindrop Impact at the Soil Surface: Scaling Laws Depending on the Water Depth [PDF]
Earth Surface Processes and Landforms, 2016 AbstractRaindrop impact is an important process in soil erosion. Through its pressure and shear stress, raindrop impact causes a significant detachment of the soil material, making this material available for transport by sheet flow. Thanks to the accurate Navier–Stokes equations solver Gerris, we simulate the impact of a single raindrop of diameter D,
Amina Nouhou Bako +2 more
exaly +4 more sources
Journal of Theoretical Biology, 2016
Murray developed two laws for the geometry of bifurcations in the circulatory system. Based on the principle of energy minimization, Murray found restrictions for the relation between the diameters and also between the angles of the branches. It is known that bifurcations are prone to the development of atherosclerosis, in regions associated to low ...
João Miranda +2 more
exaly +5 more sources
Murray developed two laws for the geometry of bifurcations in the circulatory system. Based on the principle of energy minimization, Murray found restrictions for the relation between the diameters and also between the angles of the branches. It is known that bifurcations are prone to the development of atherosclerosis, in regions associated to low ...
João Miranda +2 more
exaly +5 more sources
Journal of Elasticity, 2008
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire +1 more source
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire +1 more source
Philosophical Magazine A, 1995
Abstract Single crystals of β-CuZn have been deformed in direct shear with a normal compressive stress superimposed at a high temperature, where non-{111} dislocations are activated. The shear systems studied were {100} {100}, {100} {110}, {110}{100}, {110}{110}.
A. Matsumoto, K. Mizoguchi, H. Saka
openaire +1 more source
Abstract Single crystals of β-CuZn have been deformed in direct shear with a normal compressive stress superimposed at a high temperature, where non-{111} dislocations are activated. The shear systems studied were {100} {100}, {100} {110}, {110}{100}, {110}{110}.
A. Matsumoto, K. Mizoguchi, H. Saka
openaire +1 more source
Extended dislocations and the schmid law of resolved shear stress
The Philosophical Magazine: A Journal of Theoretical Experimental and Applied Physics, 1966Abstract The dissociation of dislocations in close-packed crystal structures reduces the flow stress, because the two partial dislocations do not pass simultaneously through the regions of maximum opposing stress. The component of the shear stress acting in the glide plane and transverse to the glide direction changes the width of the dislocation, and ...
openaire +1 more source
XX. The law of constant resolved shear stress in crystal plasticity
The London, Edinburgh, and Dublin Philosophical Magazine and Journal of Science, 1951Abstract The formula of Peach and Koehler for the total force acting on a dislocation in a stressed crystal is derived by the use of a theorem due to Colonnetti. The same method distinguishes conservative motions of the dislocation, which do not alter the volume, from other motions.
openaire +1 more source
Near-bed velocity law and bed shear stress in vegetated flows
Journal of Fluid MechanicsBy generating drag and turbulence away from the bed, aquatic vegetation shapes the mean and turbulent velocity profile. However, the near-bed velocity distribution in vegetated flows has received little theoretical or experimental attention.
Yuan Xu +6 more
openaire +1 more source