Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
Static and dynamic response of CNT nanobeam using nonlocal strain and velocity gradient theory
King Fahd University of Petroleum and Minerals, Saudi Arabia.
Texas A&M University, Qatar.
Karlstad University, Faculty of Health, Science and Technology (starting 2013), Department of Engineering and Physics (from 2013).ORCID iD: 0000-0001-8515-9907
Swansea University, UK.
2018 (English)In: Applied Mathematical Modelling, ISSN 0307-904X, E-ISSN 1872-8480, Vol. 62, p. 207-222Article in journal (Refereed) Published
Abstract [en]

This paper examines the length-scale effect on the nonlinear response of an electrically actuated Carbon Nanotube (CNT) based nano-actuator using a nonlocal strain and velocity gradient (NSVG) theory. The nano-actuator is modeled within the framework of a doubly-clamped Euler–Bernoulli beam which accounts for the nonlinear von-Karman strain and the electric actuating forcing. The NSVG theory includes three length-scale parameters which describe two completely different size-dependent phenomena, namely, the inter-atomic long-range force and the nano-structure deformation mechanisms. Hamilton's principle is employed to obtain the equation of motion of the nonlinear nanobeam in addition to its respective classical and non-classical boundary conditions. The differential quadrature method (DQM) is used to discretize the governing equations. The key aim of this research is to numerically investigate the influence of the nonlocal parameter and the strain and velocity gradient parameters on the nonlinear structural behavior of the carbon nanotube based nanobeam. It is found that these three length-scale parameters can largely impact the performance of the CNT based nano-actuator and qualitatively alter its resultant response. The main goal of this investigation is to understand the highly nonlinear response of these miniature structures to improve their overall performance.

Place, publisher, year, edition, pages
Elsevier, 2018. Vol. 62, p. 207-222
Keywords [en]
Carbon nanotube (CNT) Euler–Bernoulli nanobeam, Differential quadrature method (DQM), Material length scales, Nonlocal strain and velocity gradient theory, Static and eigenvalue problem, Actuators, Differentiation (calculus), Eigenvalues and eigenfunctions, Equations of motion, Nanowires, Nonlinear equations, Velocity, Yarn, Bernoulli, Differential quadrature methods, Eigenvalue problem, Material length scale, Velocity gradients, Carbon nanotubes
National Category
Mechanical Engineering
Research subject
Mechanical Engineering
Identifiers
URN: urn:nbn:se:kau:diva-68387DOI: 10.1016/j.apm.2018.05.034Scopus ID: 2-s2.0-85048573359OAI: oai:DiVA.org:kau-68387DiVA, id: diva2:1230619
Available from: 2018-07-04 Created: 2018-07-04 Last updated: 2018-07-05Bibliographically approved

Open Access in DiVA

No full text in DiVA

Other links

Publisher's full textScopus

Authority records BETA

Mousavi, Mahmoud

Search in DiVA

By author/editor
Mousavi, Mahmoud
By organisation
Department of Engineering and Physics (from 2013)
In the same journal
Applied Mathematical Modelling
Mechanical Engineering

Search outside of DiVA

GoogleGoogle Scholar

doi
urn-nbn

Altmetric score

doi
urn-nbn
Total: 6 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf