Results 131 to 140 of about 397 (169)
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Microrotation analysis applied to material cracking and toughness
International Journal of Fracture, 1992Micro cracking in a solid material is a phenomenon of solid plane bifurcation with incompatible microrotation. Therefore analysis of a microrotation field in a strained material is important in fracture mechanics. Based on the strain-rotation (S-R) decomposition theorem newly developed in non-linear mechanics of finite deformation, a new geometric ...
Chong Wang
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Microrotation viscosity effect on turbulent micropolar fluid channel flow
Physics of Fluids, 2021Fluids with an internal rigid microstructure, the so-called micropolar fluids, gain significant attention in many industrial, natural, and biological systems. Here, we study in detail the microrotation viscosity effect on turbulent flows by considering an alternative formulation of the Navier–Stokes equation in which the linear and angular momentum is ...
George Sofiadis, Ioannis E Sarris
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The contributions of microrotation of lubricant molecules in a thin film journal bearing
Acta Mechanica, 2002zbMATH Open Web Interface contents unavailable due to conflicting licenses.
R S R Gorla, Gorla R S R
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Theory of slickenline patterns based on the velocity gradient tensor and microrotation
Tectonophysics, 1991Abstract Brittle fault zones commonly are characterized by a multitude of lineated shear planes having a wide distribution of orientations. In our model, we assume the faulted rock comprises an aggregate of rigid blocks whose surfaces are the shear planes.
Robert J Twiss, Stephen D Hurst
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A polarimetric optical microrotation sensor employing A birefringent uniaxial crystal
Microwave and Optical Technology Letters, 1991AbstractA polarimetric sensor suited for microrotation measurements is described. Its basic component is a uniaxial crystal inside which the extraordinary wave velocity changes with rotation, thus altering the monitored polarization state of the light coming out of the crystal.
J A Brandao Faria
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IEEE Transactions on Biomedical Engineering, 2010
Reconstruction of a 3-D structure from multiple projection images requires prior knowledge of projection directions or camera motion parameters that describe the relative positions and orientations of 3-D structure with respect to the camera. These parameters can be estimated using, for instance, the conventional correlation alignment and feature-based
Danai Laksameethanasan, Sami S Brandt
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Reconstruction of a 3-D structure from multiple projection images requires prior knowledge of projection directions or camera motion parameters that describe the relative positions and orientations of 3-D structure with respect to the camera. These parameters can be estimated using, for instance, the conventional correlation alignment and feature-based
Danai Laksameethanasan, Sami S Brandt
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Wellposedness and zero microrotation viscosity limit of the 2D micropolar fluid equations
Mathematical Methods in the Applied Sciences, 2011Summary: We consider the 2D micropolar fluid equations in the whole space \(\mathbb R^2\). We prove the global wellposedness of the system with rough initial data and show the vanishing microrotation viscosity limit in the case of zero kinematic viscosity or zero angular viscosity.
Liutang Xue
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International Journal of Engineering Science, 2011
Abstract Motivated by a desire to incorporate micro- and nanoscale deformation mechanisms into continuum mechanical models of material behavior, we apply recently developed volume-averaged metrics to the results of atomistic simulations to investigate deformation and microrotation in the vicinity of grain boundaries.
Garritt J Tucker +2 more
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Abstract Motivated by a desire to incorporate micro- and nanoscale deformation mechanisms into continuum mechanical models of material behavior, we apply recently developed volume-averaged metrics to the results of atomistic simulations to investigate deformation and microrotation in the vicinity of grain boundaries.
Garritt J Tucker +2 more
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Physics of Fluids
In this paper, mechanisms that differentiate microrotation (i.e., particles' internal rotation) and vorticity in magnetohydrodynamic micropolar flows with magnetic particles are examined. Micropolar fluids are characterized by the asynchronization of the microrotation and the vorticity of the liquid carrier. When the microrotation is equal to the fluid'
Kyriaki-Evangelia Aslani +2 more
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In this paper, mechanisms that differentiate microrotation (i.e., particles' internal rotation) and vorticity in magnetohydrodynamic micropolar flows with magnetic particles are examined. Micropolar fluids are characterized by the asynchronization of the microrotation and the vorticity of the liquid carrier. When the microrotation is equal to the fluid'
Kyriaki-Evangelia Aslani +2 more
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Defining relations for a viscoelastic medium with microrotation
Journal of Applied Mathematics and Mechanics, 1997The paper deals with a model of medium with microcracks and heredity. It is shown that, for the linear approximation, the constitutive equations have the form of convolutions with respect to time with some relaxation kernels. The propagation of small perturbations in homogeneous medium is studied.
Dinariev, O. Yu., Nikolaevskij, V. N.
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