Results 191 to 200 of about 63,244 (238)
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Shear stress! A physics word puzzle
Physics Education, 2017An interesting word puzzle to demonstrate how ordinary words have a different meaning in the physics classroom. Can you use the physics terms to work out the overall meaning of the text?
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Shear Banding in Sandstone: Physical and Numerical Studies
International Journal of Geomechanics, 2006The development of a localized damage zone or shear band in rock was studied through numerical and physical experiments. A laboratory biaxial (plane strain) compression test was conducted on a prismatic specimen of Berea sandstone. The shear band initiation and propagation were monitored by locations of acoustic emission and examination of thin ...
A. Fakhimi, J. J. Riedel, J. F. Labuz
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Physical Aging and Shear Creep of Poly(carbonate)
Mechanics of Time-Dependent Materials, 1998In order to check Struik's theory of creep under proceeding aging, accurate torsional creep measurements have been performed on poly(carbonate) in the glassy region and in the glass-rubber transition. From the latter, the course of the compliance in volume equilibrium is derived.
F.R. Schwarzl, J. Kaschta
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A Physical model for shear-wave velocity prediction
56th EAEG Meeting, 1994A velocity model for clay-sand mixtures has been developed by Xu and White (1993). In this model, the total pore space is assumed to consist of two parts: (1) pores associated with sand grains and (2) pores associated with clays. It is further assumed that the geometry of sand-related pores is significantly different from that of clay-related pores ...
S. Xu, R. E. White
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Physical processes underlying the development of shear turbulence
Journal of Experimental and Theoretical Physics, 2004A physical model of the development of turbulence in free shear flows is proposed. The model is based on the results of numerical simulations of turbulent flow development. The main ideas of the proposed theory of turbulence are stated as follows: the onset of turbulence begins with the formation of large vortices; spectral energy transfer involves ...
O. M. Belotserkovskii +2 more
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Shear Induced Irreversible Gelation through Physical Network Formation
Macromolecules, 2013A resin mixture of vinyl ester and carboxyl terminated butadiene diluted with styrene shows an increase of viscosity when shearing the sample. Unlike previous reports on rheopexy and shear induced gelation of unfilled systems, this behavior leads to permanently elevated levels of viscosity.
Tahmineh Mahmoudi +4 more
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Shear thinning pectin hydrogels physically cross-linked with chitosan nanogels
Carbohydrate Polymers, 2019The development of a polymer-nanogel hydrogel based on a pair of polysaccharides is reported for the first time. This new hydrogel exhibits self-healing properties due to physical interactions between soluble pectin chains and chitosan nanogels.
Yulia Shitrit +2 more
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Physical and numerical modeling of shear band formation
2009Failure in soils is directly coupled to the formation of shear bands disconnecting the evolving failure body from the remaining soil continuum. For the scientific examination of shear band formation concerning earth pressure, base and slope failure several series of model tests are carried out at the Institute and Laboratory of Geotechnics of ...
Katzenbach R., Bachmann G., Gutberlet C.
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Accelerated simulations of direct shear tests by physics engine
Computational Particle Mechanics, 2020Physics engines, originally developed to simulate physical and mechanical processes in modern video games, are increasingly used as a scientific computational platform in many disciplines due to their high computational efficiency. This study explores the feasibility of using an open-source physics engine, Project Chrono, to simulate direct shear tests.
Hantao He, Junxing Zheng, Zhaochao Li
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Physical Modeling of the Effect of Shearing on the Concentration Profile in a Shear Cell
Journal of The Electrochemical Society, 1999The effect of the action of shearing a column of molten gallium (Ga) doped germanium (Ge) on the gallium concentration field in a shear cell segment was experimentally investigated using a physical model. A physical model is an experimental system that is different from the system of interest but connected by scaling relations.
David H. Matthiesen +2 more
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