Results 81 to 90 of about 2,766 (212)
Regularity for Micropolar Fluid Equations Subjected to Hall Current
Journal of Applied Mathematics, Volume 2025, Issue 1, 2025.In this paper, we consider the density‐dependent incompressible Hall‐magnetomicropolar fluid equations and establish a regularity condition involving the Lt1Lx∞ norm of the velocity gradient and the microrotational velocity gradient and the Lt2r/r−3Lxr norm of the magnetic field gradient for r > 3.
Mingyu Zhang, Arpan Hazra
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Radiative Heat Transfer Flow of Micropolar Fluid with Variable Heat Flux in a Porous Medium
Nonlinear Analysis, 2008 A two-dimensional steady convective flow of a micropolar fluid past a vertical porous flat plate in the presence of radiation with variable heat flux has been analyzed numerically.
M. M. Rahman, T. Sultana
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physica status solidi (b), Volume 261, Issue 12, December 2024.Poisson's ratio in chiral isotropic elastic solids can be larger or smaller than the classical thermodynamic bounds. The effect of Cosserat coupling constant k is studied. Analysis shows that solids with weak coupling exhibit Poisson's ratio anomalies for larger specimen sizes than corresponding solids with strong coupling.
Roderic S. Lakes, Ballard Huey
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, 2015 In a series of papers which are either published [A.R. Hadjesfandiari and G.F. Dargush, Couple stress theory for solids, Int. J. Solids Struct. 48, 2496-2510, 2011; A.R. Hadjesfandiari and G.F.
Ghiba, Ionel-Dumitrel +3 more
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Curved Three‐Director Cosserat Shells with Strong Coupling
Computer Graphics Forum, Volume 43, Issue 8, December 2024.Abstract Continuum‐based shell models are an established approach for the simulation of thin deformables in computer graphics. However, existing research in physically‐based animation is mostly focused on shear‐rigid Kirchhoff‐Love shells. In this work we explore three‐director Cosserat (micropolar) shells which introduce additional rotational degrees ...
F. Löschner +3 more
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Double‐surface plasticity for micropolar continuum
PAMM, Volume 24, Issue 3, October 2024.Abstract This work is concerned with the modeling of a cold‐box sand (CBS), a composition of sand grains and a resin binder. To this end, experiments are performed which show the following characteristics: localization phenomena in form of a shear band, softening behavior in the force‐displacement curve, asymmetric behavior for compression and tension.
Alexander Börger, Rolf Mahnken
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PAMM, Volume 24, Issue 1, June 2024.Abstract Cold‐box sand (CBS) belongs to the granular materials and consists of sand and a binder. The behavior of CBS is simulated with a micropolar model, whereby the additional degree of freedom of the model describes the rotation of the sand grains. The model is used to generate a shear band under pressure for three different meshes, where the force‐
Alexander Börger, Rolf Mahnken
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International Journal for Numerical and Analytical Methods in Geomechanics, Volume 48, Issue 7, Page 1879-1906, May 2024.Abstract In this work, preconditioning strategies are developed in the context of generalized continuum formulations used to regularize multifield models for simulating localized failure of quasi‐brittle materials. Specifically, a micropolar continuum extended by a nonlocal damage formulation is considered for regularizing both, shear dominated failure
Nasser Alkmim +3 more
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Research on Loss Characteristics Based on the Vibration Law of Granular Assembly
Shock and Vibration, Volume 2024, Issue 1, 2024.Particle damping technology is a typical passive vibration damping technology. In order to further explore the energy dissipation characteristics of particle dampers under different excitation, the relationship between internal vibration state and energy dissipation is analyzed.
Shengwu Zhang +7 more
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The geometrically nonlinear Cosserat micropolar shear-stretch energy.\n Part I: A general parameter reduction formula and energy-minimizing\n microrotations in 2D [PDF]
, 2015 Andreas Fischle, Patrizio Neff
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