A comparative study of modified strain gradient theory and modified couple stress theory for gold microbeams
Sign Up to like & getrecommendations! Published in 2018 at "Archive of Applied Mechanics"
DOI: 10.1007/s00419-018-1436-0
Abstract: Microbeams are common structures encountered in micro- and nano-electromechanical systems. Their mechanical response cannot be modelled by local theories of continuum mechanics due to size effect, which becomes more pronounced as the structural length scale… read more here.
Keywords: strain gradient; modified strain; gradient theory; gold microbeams ... See more keywords
Nonlinear size-dependent dynamic buckling analysis of embedded micro cylindrical shells reinforced with agglomerated CNTs using strain gradient theory
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DOI: 10.1007/s00542-017-3407-8
Abstract: This article presents an analysis on the nonlinear dynamic buckling of a micro cylindrical shell reinforced by carbon nanotubes (CNTs) with considering agglomeration effects. The structure is surrounded by an elastic medium and is subjected… read more here.
Keywords: strain gradient; theory; dynamic buckling; micro cylindrical ... See more keywords
Frequency analysis of nanoporous mass sensors based on a vibrating heterogeneous nanoplate and nonlocal strain gradient theory
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DOI: 10.1007/s00542-017-3531-5
Abstract: A new modeling of nano-mechanical mass sensors constructed from porous nanomaterials is presented based on generalized nonlocal strain gradient theory (NSGT). In this model, true small size effects including softening and hardening mechanisms are considered… read more here.
Keywords: strain gradient; mass sensors; gradient theory; mass ... See more keywords
Nonlinear resonant behaviors of embedded thick FG double layered nanoplates via nonlocal strain gradient theory
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DOI: 10.1007/s00542-018-4198-2
Abstract: This research deals with the nonlinear forced vibration behavior of embedded functionally graded double layered nanoplates with all edges simply supported via nonlocal strain gradient elasticity theory based on the Mindlin plate theory along with… read more here.
Keywords: strain gradient; via nonlocal; layered nanoplates; theory ... See more keywords
Autofrettage and shakedown analyses of an internally pressurized thick-walled spherical shell based on two strain gradient plasticity solutions
Sign Up to like & getrecommendations! Published in 2017 at "Acta Mechanica"
DOI: 10.1007/s00707-016-1695-1
Abstract: An autofrettage analysis of an internally pressurized thick-walled spherical shell is performed by using two closed-form solutions for an elastic linear-hardening shell and an elastic power-law hardening shell based on a strain gradient plasticity theory,… read more here.
Keywords: strain gradient; thick walled; walled spherical; spherical shell ... See more keywords
Strain gradient effects on the thermoelastic analysis of a functionally graded micro-rotating cylinder using generalized differential quadrature method
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DOI: 10.1007/s00707-016-1780-5
Abstract: In this paper, a strain gradient elasticity formulation for capturing the size effect in micro-scaled structures is presented to analyze the thermoelastic response of a functionally graded micro-rotating cylinder. The temperature distribution in the micro-rotating… read more here.
Keywords: strain gradient; rotating cylinder; functionally graded; micro rotating ... See more keywords
Analysis of functionally graded nanodisks under thermoelastic loading based on the strain gradient theory
Sign Up to like & getrecommendations! Published in 2017 at "Acta Mechanica"
DOI: 10.1007/s00707-017-1939-8
Abstract: In this paper, the thermoelastic behavior of a functionally graded nanodisk is studied based on the strain gradient theory. It is assumed that the nanodisk thickness is constant, and a power-law model is adopted to… read more here.
Keywords: strain gradient; gradient theory; functionally graded; loading ... See more keywords
Vibration analysis of porous FG nanoshells with even and uneven porosity distributions using nonlocal strain gradient elasticity
Sign Up to like & getrecommendations! Published in 2018 at "Acta Mechanica"
DOI: 10.1007/s00707-017-2032-z
Abstract: This paper studies the free vibrational behavior of porous functionally graded nanoshells using nonlocal strain gradient theory. A nonlocal parameter and a strain gradient parameter are employed to describe both stiffness reduction and stiffness enhancement… read more here.
Keywords: strain gradient; porosity; using nonlocal; nonlocal strain ... See more keywords
Size-dependent nonlinear vibration analysis of shear deformable microarches using strain gradient theory
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DOI: 10.1007/s00707-018-2142-2
Abstract: Non-classical continuum theories are able to capture the size-dependent behavior of microscale structures. Among them, strain gradient modeling is one of the most accurate ones. The objective of this paper is to develop for the… read more here.
Keywords: strain gradient; size dependent; analysis; shear deformable ... See more keywords
The comparison of strain gradient effects for each component in static and dynamic analyses of FGM micro-beams
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DOI: 10.1007/s00707-018-2192-5
Abstract: This paper proposes a spherical–deviatoric splitting of the strain gradient tensor to reinterpret the meanings of strain gradient components. The strain gradient theory of Zhou et al. is re-expressed in a more direct form, and,… read more here.
Keywords: strain gradient; fgm micro; static dynamic; strain ... See more keywords
Static, stability and dynamic analyses of second strain gradient elastic Euler–Bernoulli beams
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DOI: 10.1007/s00707-020-02902-5
Abstract: A simplified second strain gradient Euler–Bernoulli beam theory with two non-classical elastic coefficients in addition to the classical constants is presented. The governing equation and the associated classical and non-classical boundary conditions are derived with… read more here.
Keywords: euler bernoulli; second strain; strain gradient; beam ... See more keywords