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Fig. 1. A schematic of the MHC reinforced doubly curved panel in the viscoelastic medium.
FROM:
M.S.H. Al-Furjan (1,2), Mohammad Amin Oyarhossein (3), Mostafa Habibi (4,5), Hamed Safarpour (6), Dong Won Jung (7) and Abdelouahed Tounsi (8)
(1) School of Mechanical Engineering, Hangzhou Dianzi University, Hangzhou 310018, China
(2) School of Materials Science and Engineering, State Key Laboratory of Silicon Materials, Zhejiang University, Hangzhou 310027, China
(3) Department of Civil Engineering, University of Aveiro, Aveiro, Portugal
(4) Institute of Research and Development, Duy Tan University, Da Nang 550000, Viet Nam
(5) Faculty of Electrical–Electronic Engineering, Duy Tan University, Da Nang 550000, Viet Nam
(6) Faculty of Engineering, Department of Mechanics, Imam Khomeini International University, Qazvin, Iran
(7) School of Mechanical Engineering, Jeju National University, Jeju, Jeju-do 690-756, South Korea
(8) Material and Hydrology Laboratory, University of Sidi Bel Abbes, Faculty of Technology, Civil Engineering Department, Algeria
“On the wave propagation of the multi-scale hybrid nanocomposite doubly curved viscoelastic panel”, Composite Structures, Vol. 255 Article 112947, 1 January 2021, https://doi.org/10.1016/j.compstruct.2020.112947
ABSTRACT: In this paper, wave propagation analysis of multi-hybrid nanocomposite (MHC) reinforced doubly curved panel embedded in the viscoelastic foundation is carried out. Higher-order shear deformable theory (HSDT) is utilized to express the displacement kinematics. The rule of mixture and modified Halpin–Tsai model are engaged to provide the effective material constant of the MHC reinforced doubly curved panel. By employing Hamilton’s principle, the governing equations of the structure are derived and solved with the aid of an analytical method. Afterward, a parametric study is carried out to investigate the effects of the viscoelastic foundation, carbon nanotubes’ (CNTs’) weight fraction, various MHC patterns, radius to total thickness ratio, and carbon fibers angel on the phase velocity of the MHC reinforced doubly curved panel in the viscoelastic medium. The results show that, by considering the viscous parameter, the relation between wavenumber and phase velocity changes from exponential increase to logarithmic boost. A useful suggestion of this research is that the effects of fiber angel and damping parameter on the phase velocity of a doubly curved panel are hardly dependent on the wavenumber. The presented study outputs can be used in ultrasonic inspection techniques and structural health monitoring.
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