Results 161 to 170 of about 1,003 (202)

A Hierarchical Nano to Micro Scale Modelling of 3D Printed Nano-Reinforced Polylactic Acid: Micropolar Modelling and Molecular Dynamics Simulation. [PDF]

Nanomaterials (Basel)
Rezaei A, Izadi R, Fantuzzi N.
europepmc   +1 more source

Microrotation viscosity effect on turbulent micropolar fluid channel flow

Physics of Fluids, 2021
Fluids 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 ...
Ioannis Sarris, George Sofiadis
exaly   +3 more sources

Asymptotic analysis of the lubrication problem with nonstandard boundary conditions for microrotation

Filomat, 2016
The purpose of this paper is to propose a new effective model describing lubrication process with incompressible micropolar fluid. Instead of usual zero Dirichlet boundary condition for the microrotation, we consider more general (and physically justified) type of boundary condition at the fluid-solid interface, linking the velocity and ...
Igor Pažanin
exaly   +4 more sources

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Microrotation effects in material fracture and damage

Engineering Fracture Mechanics, 1991
Abstract Microrotation has an important effect at the tip of a crack where the stress gradient is large. The growth of a crack is by geometry a bifurcation of crack plane due to incompatibility of microrotation at the crack tip. By means of S( strain )-R( rotation ) decomposition theorem developed recently in mechanics of finite deformation,
Chong Wang, Zhi-Da Chen
exaly   +2 more sources

Microrotation analysis applied to material cracking and toughness

International Journal of Fracture, 1992
Micro 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
exaly   +2 more sources

The contributions of microrotation of lubricant molecules in a thin film journal bearing

Acta Mechanica, 2002
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
R S R Gorla
exaly   +2 more sources

Defining relations for a viscoelastic medium with microrotation

Journal of Applied Mathematics and Mechanics, 1997
The 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.
openaire   +2 more sources

The unsteady microrotational regime

Journal of Applied Mathematics and Mechanics, 1993
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Dinariev, O. Yu., Nikolaevskij, V. N.
openaire   +1 more source

Vestibular afferent responses to microrotational stimuli

Brain Research, 1991
Intracellular microelectrode recording/labelling techniques were used to investigate vestibular afferent responses in the bullfrog, to very small amplitude (less than 0.5 degree p-p) sinusoidal rotations in the vertical plane over the frequency range of 0.063-4 Hz.
S F, Myers, E R, Lewis
openaire   +2 more sources

Theory of slickenline patterns based on the velocity gradient tensor and microrotation

Tectonophysics, 1991
Abstract 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, Gretchen M. Protzman, Stephen D. Hurst   +2 more
openaire   +2 more sources