Results 81 to 90 of about 1,455 (192)

Pulsating flow of an incompressible micropolar fluid between permeable beds

Nonlinear Analysis, 2013
The paper deals with the pulsating flow of an incompressible micropolar fluid through a channel bounded by permeable beds. The fluid is injected into the channel from the lower permeable bed with a certain velocity and is sucked into the upper permeable ...
Punnamchandar Bitla, Telikicherla Kandala Venkatacharyulu Iyengar   +1 more
doaj  

Elastic Plates Motions with Transverse Variation of Microrotation

, 2009
21 ...
openaire   +2 more sources

Micropolar Elastoplasticity Using a Fast Fourier Transform‐Based Solver

International Journal for Numerical Methods in Engineering, Volume 126, Issue 1, 15 January 2025.
ABSTRACT This work presents a micromechanical spectral formulation for obtaining the full‐field and homogenized response of elastoplastic micropolar composites. A closed‐form radial‐return mapping is derived from thermodynamics‐based micropolar elastoplastic constitutive equations to determine the increment of plastic strain necessary to return the ...
Noah M. Francis, Ricardo A. Lebensohn, Fatemeh Pourahmadian, Rémi Dingreville   +3 more
wiley   +1 more source

Weak discontinuities propagation of displacements and microrotations in a semi-isotropic micropolar body

Вестник Чувашского государственного педагогического университета им. И.Я. Яковлева. Серия: Механика предельного состояния, 2023
В настоящей работе рассматривается распространение поверхности слабых разрывов вектора перемещений и псевдовектора микровращения в полуизотропном микрополярном теле. Определяется скорость поверхности слабых разрывов, при которой возможно распространение поверхностей связанных слабых разрывов перемещений и микровращений.
openaire   +1 more source

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
wiley   +1 more source

Poisson's Ratio beyond the Classically Allowable Range in Chiral Isotropic Elastic Materials: Effect of k and Experiment

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
wiley   +1 more source

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, J. A. Fernández‐Fernández, S. R. Jeske, J. Bender   +3 more
wiley   +1 more source

Cartan's spiral staircase in physics and, in particular, in the gauge theory of dislocations

, 2010
In 1922, Cartan introduced in differential geometry, besides the Riemannian curvature, the new concept of torsion. He visualized a homogeneous and isotropic distribution of torsion in three dimensions (3d) by the "helical staircase", which he constructed
A. Trautman, A. Zeghadi, A.A. García, A.C. Eringen, C. Malyshev, D. Klemm, E. et F. Cosserat, E. Kröner, E. Kröner, E. Kröner, E. Kröner, E.W. Mielke, E.W. Mielke, E.W. Mielke, F. Gronwald, F. Gronwald, F.W. Hehl, F.W. Hehl, F.W. Hehl, F.W. Hehl, F.W. Hehl, Friedrich W. Hehl, G. Capriz, G.A. Maugin, G.A. Maugin, G.A. Maugin, H. Kleinert, H. Schaefer, J.D. Eshelby, J.M. Nester, J.W. Maluf, K.F. Shie, M. Bañados, M. Kleman, M. Lazar, M. Lazar, M. Lazar, M. Lazar, M. Lazar, M. Lazar, M. Lazar, M. Lazar, M. Lazar, M.L. Ruggiero, M.O. Katanaev, M.O. Katanaev, Markus Lazar, O. Costa de Beauregard, P. Baekler, P. Baekler, R.A. Puntigam, S. Carlip, W. Günther, W. Jaunzemis, W. Voigt, É. Cartan, É. Cartan   +56 more
core   +1 more source

Double‐surface plasticity for micropolar continuum

Proceedings in Applied Mathematics and Mechanics, 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
wiley   +1 more source

Novel study of inertial forces on MHD peristaltically driven micropolar fluid through porous-saturated asymmetric channel: Finite Galerkin approach

AIP Advances
This focused study investigates the peristaltic motion of a micropolar fluid within an uneven channel filled with a porous medium, incorporating an orthogonal magnetic field to the flow.
Bilal Ahmed, Liaqat Ali, Fizza Anwar
doaj   +1 more source