A four-node C$$^{0}$$ tetrahedral element based on the node-based smoothing technique for the modified couple stress theory
Sign Up to like & getrecommendations! Published in 2020 at "Computational Mechanics"
DOI: 10.1007/s00466-020-01831-3
Abstract: In this paper, a four-node $$C^{0}$$ tetrahedral element for the modified couple stress theory is proposed. Since the governing equations are the fourth-order differential equations, the first-order derivative of displacement or rotation should be approximated… read more here.
Keywords: four node; couple stress; tetrahedral element; node tetrahedral ... See more keywords
Thermo-electro-mechanical bending of FG piezoelectric microplates on Pasternak foundation based on a four-variable plate model and the modified couple stress theory
Sign Up to like & getrecommendations! Published in 2018 at "Microsystem Technologies"
DOI: 10.1007/s00542-017-3492-8
Abstract: In this paper, the size-dependent bending response of functionally graded piezoelectric (FGP) microplates resting on two-parameter elastic foundations and subjected to an external mechanical load, electric voltage and elevated temperature is investigated. The thermo-electro-mechanical loads… read more here.
Keywords: thermo electro; theory; couple stress; plate ... See more keywords
Size-dependent nonlinear dynamics of a microbeam based on the modified couple stress theory
Sign Up to like & getrecommendations! Published in 2017 at "Acta Mechanica"
DOI: 10.1007/s00707-017-1895-3
Abstract: In this paper, the nonlinear dynamics of an electostatically actuated microbeam with von kármán geometric nonlinearity and squeeze-film damping are studied. The governing equations and the boundary conditions are developed using the modified couple stress… read more here.
Keywords: size dependent; couple stress; nonlinear dynamics; size ... See more keywords
Refined two-temperature multi-phase-lags theory for thermomechanical response of microbeams using the modified couple stress analysis
Sign Up to like & getrecommendations! Published in 2018 at "Acta Mechanica"
DOI: 10.1007/s00707-018-2172-9
Abstract: This article presents a refined two-temperature multi-phase-lags thermoelasticity theory for the thermomechanical response of microbeams. The modified couple stress theory has been developed to capture the size effect in the small-size investigation. The microbeam is… read more here.
Keywords: temperature; couple stress; two temperature; phase lags ... See more keywords
Thermally induced large deflection of FGM shallow micro-arches with integrated surface piezoelectric layers based on modified couple stress theory
Sign Up to like & getrecommendations! Published in 2019 at "Acta Mechanica"
DOI: 10.1007/s00707-019-02384-0
Abstract: Based on the modified couple stress theory, nonlinear thermally induced large deflection analysis of shallow sandwich arches is studied. A functionally graded material (FGM) micro-arch with piezoelectric layers integrated into the surfaces and with immovable… read more here.
Keywords: theory; couple stress; fgm; stress ... See more keywords
Dispersion feature of elastic waves in a 1-D phononic crystal with consideration of couple stress effects
Sign Up to like & getrecommendations! Published in 2019 at "Acta Mechanica"
DOI: 10.1007/s00707-019-02395-x
Abstract: The couple stress effects upon the propagation behavior and the dispersive feature of Bloch waves in the periodically laminated structure are studied in this paper. First, the various modes of wave motion in the elastic… read more here.
Keywords: couple stress; consideration couple; bloch waves; stress effects ... See more keywords
A general dynamic model based on Mindlin’s high-frequency theory and the microstructure effect
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DOI: 10.1007/s00707-020-02714-7
Abstract: Based on Hamilton’s principle, a general three-dimensional mechanical model with consideration of the consistent couple stress theory is established in this paper, and the dynamic governing equations and boundary conditions are derived strictly. After that,… read more here.
Keywords: effect; high frequency; couple stress; theory ... See more keywords
Modified couple stress theory for three-dimensional elasticity in curvilinear coordinate system: application to micro torus panels
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DOI: 10.1007/s11012-020-01220-3
Abstract: This research considers size effects in the linear three-dimensional elasticity analysis of micro-tori. The fundamental relations (displacement form) are derived for isotropic toroidal shells in the framework of the modified couple stress theory in the… read more here.
Keywords: three dimensional; theory; couple stress; modified couple ... See more keywords
Heat and mass transfer analysis of MHD couple stress fluid flow through expanding or contracting porous pipe with cross diffusion effects
Sign Up to like & getrecommendations! Published in 2019 at "International Journal of Dynamics and Control"
DOI: 10.1007/s40435-019-00545-6
Abstract: AbstractThis article investigates the effects of an incompressible laminar magnetohydrodynamic flow of couple stress fluid through an expanding or contracting porous pipe with cross diffusion has been considered. It is assumed that the pipe wall… read more here.
Keywords: couple stress; expanding contracting; stress fluid; fluid ... See more keywords
Modelling Shock Wave Development in the Transient Coronary Artery Filled with Couple Stress Fluid
Sign Up to like & getrecommendations! Published in 2017 at "International Journal of Applied and Computational Mathematics"
DOI: 10.1007/s40819-016-0164-9
Abstract: This paper investigates the effect of couple stresses on the propagation of nonlinear pulse wave from the heart through a tapered coronary artery. Analysis is done with the assumption that blood is a non-homogeneous fluid.… read more here.
Keywords: fluid; modelling shock; couple stress; coronary artery ... See more keywords
Numerical Analysis of Couple Stress Nanofluid in Temperature Dependent Viscosity and Thermal Conductivity
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DOI: 10.1007/s40819-021-00983-x
Abstract: This communication reports on an innovative study of two-dimensional couple stress fluid 3 with effect of viscosity and conductivity. We proposed a new model based on temperature dependent variable thermal conductivity on kinetic theory. Our… read more here.
Keywords: conductivity; couple stress; temperature; thermal conductivity ... See more keywords