ORCID Profile
0000-0003-1114-7393
Current Organisation
University of Adelaide
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Publisher: Elsevier BV
Date: 02-2014
Publisher: Springer Science and Business Media LLC
Date: 20-07-2012
Publisher: Institution of Engineering and Technology (IET)
Date: 11-2018
Publisher: Growing Science
Date: 2014
Publisher: Elsevier BV
Date: 2013
Publisher: Elsevier BV
Date: 2014
Publisher: Springer Science and Business Media LLC
Date: 21-04-2016
Publisher: World Scientific Pub Co Pte Lt
Date: 06-2016
DOI: 10.1142/S1758825116500484
Abstract: It is well-known that rotating nanobeams can have different dynamic and stability responses to various types of loadings. In this research, attention is focused on studying the effects of magnetic field, surface energy and compressive axial load on the dynamic and the stability behavior of the nanobeam. For this purpose, it is assumed that the rotating nanobeam is located in the nonuniform magnetic field and subjected to compressive axial load. The nonlocal elasticity theory and the Gurtin–Murdoch model are applied to consider the effects of inter atomic forces and surface energy effect on the vibration behavior of rotating nanobeam. The vibration frequencies and critical buckling loads of the nanobeam are computed by the differential quadrature method (DQM). Then, the numerical results are testified with those results are presented in the published works and a good correlation is obtained. Finally, the effects of angular velocity, magnetic field, boundary conditions, compressive axial load, small scale parameter and surface elastic constants on the dynamic and the stability behavior of the nanobeam are studied. The results show that the magnetic field, surface energy and the angular velocity have important roles in the dynamic and stability analysis of the nanobeams.
Publisher: Elsevier BV
Date: 10-2011
Publisher: MDPI AG
Date: 29-01-2022
DOI: 10.3390/NANO12030476
Abstract: Nanostructures have shown great potential to be used as the building components of many nanoelectromechanical and microelectromechanical systems [...]
Publisher: Elsevier BV
Date: 2012
Publisher: Springer Science and Business Media LLC
Date: 03-05-2019
Publisher: Springer Science and Business Media LLC
Date: 18-12-2018
Publisher: Elsevier BV
Date: 02-2013
Publisher: IOP Publishing
Date: 31-05-2019
Publisher: Elsevier BV
Date: 02-2019
Publisher: Springer Science and Business Media LLC
Date: 28-02-2019
Publisher: Elsevier BV
Date: 07-2013
Publisher: Elsevier BV
Date: 04-2015
Publisher: Springer Science and Business Media LLC
Date: 04-2019
Publisher: Springer Science and Business Media LLC
Date: 22-06-2018
Publisher: Elsevier BV
Date: 11-2017
Publisher: Elsevier BV
Date: 09-2014
Publisher: FapUNIFESP (SciELO)
Date: 08-2014
Publisher: Springer Science and Business Media LLC
Date: 23-05-2017
Publisher: Elsevier BV
Date: 06-2014
Publisher: Elsevier BV
Date: 08-2018
Publisher: Elsevier BV
Date: 2019
Publisher: IOP Publishing
Date: 14-03-2018
Publisher: Institution of Engineering and Technology (IET)
Date: 06-2016
Publisher: Informa UK Limited
Date: 06-06-2018
Publisher: Elsevier BV
Date: 2017
Publisher: FapUNIFESP (SciELO)
Date: 05-2014
Publisher: Springer Science and Business Media LLC
Date: 25-03-2016
Publisher: SAGE Publications
Date: 08-01-2020
Abstract: An attempt is made in this article to analyse the large- litude local dynamics of nanofluid-conveying nanotubes with geometrical imperfections. Each element of the nanotube can have displacements along both longitudinal and transverse directions. A nonlinear d ing model is also taken into account utilising the Kelvin–Voigt approach. The stress nonlocality and strain gradient influences are modelled using an advanced scale-dependent theory. Moreover, the Beskok–Karniadakis approach is applied for relative motions at the nanotube wall. To present the coupled motion equations of the coupled nanotube, Hamilton’s approach is used. Moreover, to develop a reliable solution procedure, Galerkin’s method along with continuation technique is utilised. The effects of nonlinear d ing, geometrical imperfection, being at nanoscales, fluid velocity and relative motion at the wall on the large- litude local dynamics are investigated.
Publisher: Elsevier BV
Date: 08-2011
Publisher: Springer Science and Business Media LLC
Date: 12-02-2019
Publisher: Institution of Engineering and Technology (IET)
Date: 04-2014
Publisher: Elsevier BV
Date: 03-2017
Publisher: FapUNIFESP (SciELO)
Date: 2014
Publisher: Wiley
Date: 26-02-2014
DOI: 10.1002/LS.1257
Publisher: Elsevier BV
Date: 05-2014
Publisher: SAGE Publications
Date: 16-04-2019
Abstract: A nonlinear viscoelastic model is developed for the dynamics of nanotubes conveying fluid. The influences of strain gradients and stress nonlocality are incorporated via a nonlocal strain gradient theory (NSGT). Since at nanoscales, the assumptions of no-slip boundary conditions are not valid, the Beskok–Karniadakis theory is used to overcome this problem. The coupled nonlinear differential equations are derived via performing an energy/work balance. The derived equations along the transverse and axial axes are simultaneously solved to obtain the nonlinear frequency response. For this purpose, Galerkin's technique together with a continuation method are utilized. The frequency response is investigated in both subcritical and supercritical flow regimes.
Publisher: Elsevier BV
Date: 04-2014
Publisher: Elsevier BV
Date: 09-2014
Publisher: Elsevier BV
Date: 04-2012
Publisher: Informa UK Limited
Date: 20-02-2018
Publisher: Elsevier BV
Date: 04-2016
Publisher: Elsevier BV
Date: 08-2013
Publisher: Elsevier BV
Date: 03-2019
Publisher: Springer Science and Business Media LLC
Date: 11-2019
Publisher: Elsevier BV
Date: 12-2011
Publisher: Elsevier BV
Date: 12-2018
Publisher: Elsevier BV
Date: 12-2018
Publisher: Springer Science and Business Media LLC
Date: 06-2018
Publisher: Springer Science and Business Media LLC
Date: 10-09-2019
Location: Iran (Islamic Republic of)
Location: Iran (Islamic Republic of)
No related grants have been discovered for Ali Farajpour.