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Smart Structures and Systems
  Volume 26, Number 5, November 2020, pages 631-640

On nonlinear vibration behavior of piezo-magnetic doubly-curved nanoshells
Sayed Sajad Mirjavadi, Hassan Bayani, Navid Khoshtinat, Masoud Forsat, Mohammad Reza Barati and A.M.S Hamouda

    In this paper, nonlinear vibration behaviors of multi-phase Magneto-Electro-Elastic (MEE) doubly-curved nanoshells have been studied employing Jacobi elliptic function method. The doubly-curved nanoshell has been modeled by using nonlocal elasticity and classic shell theory. An exact estimation of nonlinear vibrational behavior of smart doubly-curved nanoshell has been obtained via Jacobi elliptic function method. This method can incorporate the influences of higher order harmonics leading to an exact estimation of nonlinear vibration frequency. It will be indicated that nonlinear vibrational frequency of doubly-curved nanoshell relies on nonlocal effect, material composition, curvature radius, center deflection and electro-magnetic field.
Key Words
    doubly-curved shell; nonlinear vibration; Jacobi elliptic function; magneto-electro-elastic material; nonlocal elasticity
(1) Sayed Sajad Mirjavadi, Masoud Forsat, A.M.S Hamouda:
Department of Mechanical and Industrial Engineering, Qatar University, P.O. Box 2713, Doha, Qatar
(2) Hassan Bayani:
Department of Electrical Engineering, Instituto Superior Técnico, UTL, Lisbon, Portugal
(3) Navid Khoshtinat:
Department of Mechanical Engineering, Science and Research Branch, Islamic Azad University, Tehran, Iran
(4) Mohammad Reza Barati:
Fidar Project Qaem Company, Darvazeh Dolat, Tehran, Iran

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