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  Volume 3, Number 2, April 2018, pages 113-132

Harmonic analysis of moderately thick symmetric cross-ply laminated composite plate using FEM
Manoj Narwariya, Achintya Choudhury and Avadesh K. Sharma

    This paper presents the vibration and harmonic analysis of orthotropic laminated composite plate. The response of plate is determined using Finite Element Method. The eight noded shell 281 elements are used to analyze the orthotropic plates and results are obtained so that the right choice can be made in applications such as aircrafts, rockets, missiles, etc. to reduce the vibration amplitudes. Initially the model response for orthotropic plate and harmonic response for isotropic plate is verified with the available literature. The results are in good agreement with the available literature. Numerical results for the natural frequency and harmonic response amplitude are presented. Effects of boundary conditions, thickness to width ratio and number of layers on natural frequency and harmonic response of the orthographic plates are also investigated. The natural frequency, mode shape and harmonic analysis of laminated composite plate has been determined using finite element package ANSYS.
Key Words
    finite element method; orthotropic plate; free vibration; harmonic response
Manoj Narwariya and Achintya Choudhury: Department of Mechanical Engineering, Sir Padampat Singhania University Bhatewar Udaipur 313 601, India
Avadesh K. Sharma: Rajkiya Engineering College, Mainpuri, India

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