An analytical study on the nonlinear forced vibration of functionally graded carbon nanotube-reinforced composite beams on nonlinear viscoelastic foundation

• Autorzy: Shafiei H. , Setoodeh A. R.

Identyfikatory

DOI

10.24423/aom.3268

• Języki publikacji: EN

Abstrakty

EN

This paper deals with the nonlinear forced vibration of nanocomposite beams resting on a nonlinear viscoelastic foundation and subjected to a transverse periodic excitation. It is considered that the functionally graded carbon nanotubereinforced composite (FG-CNTRC) beam is made of an isotropic matrix reinforced by either aligned- or randomly oriented-straight single-walled carbon nanotubes (SWCNTs) with four types of distributions through the thickness direction of the beam. Both the Eshelby–Mori–Tanaka approach and extended rule of mixtures are used to predict the effective material properties of the FG-CNTRC beams. The mathematical model of the beam is developed based on the Euler–Bernoulli beam theory together with von Kármán assumptions. Subsequently, the accurate analytical solutions of the governing equation are obtained through applying the variational iteration method (VIM). Several examples are verified to have higher accuracy than those available in the literature. In addition, a comprehensive investigation into the effect of carbon nanotubes (CNTs) distribution, CNTs volume fraction, end supports, vibration amplitude, and foundation coefficients on the vibrational characteristics of the nanocomposite beam is performed and some new results are presented.

Słowa kluczowe

EN

nonlinear forced vibration; nanocomposite beams; functionally graded materials; nonlinear viscoelastic foundation

• Wydawca: Instytut Podstawowych Problemów Techniki PAN
• Czasopismo: Archives of Mechanics
• Rocznik: 2020
• Tom: Vol. 72, nr 2
• Strony: 81--107
• Opis fizyczny: Bibliogr. 47 poz., rys. kolor.

Twórcy

autor

Shafiei H.

• Department of Mechanical and Aerospace Engineering, Shiraz University of Technology, Shiraz 71555, Iran

autor

Setoodeh A. R.

• Department of Mechanical and Aerospace Engineering, Shiraz University of Technology, Shiraz 71555, Iran

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Uwagi

PL

Opracowanie rekordu ze środków MNiSW, umowa Nr 461252 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2020).