Accepted Manuscript Large Amplitude Free Vibrations of Long FGM Cylindrical Panels on Nonlinear Elastic Foundation Based on Physical Neutral Surface Hadi Babaei, Yaser Kiani, M. Reza Eslami PII: S0263-8223(19)30323-X DOI: https://doi.org/10.1016/j.compstruct.2019.03.064 Reference: COST 10792 To appear in: Composite Structures Received Date: 27 January 2019 Revised Date: 18 March 2019 Accepted Date: 21 March 2019 Please cite this article as: Babaei, H., Kiani, Y., Eslami, M.R., Large Amplitude Free Vibrations of Long FGM Cylindrical Panels on Nonlinear Elastic Foundation Based on Physical Neutral Surface, Composite Structures (2019), doi: https://doi.org/10.1016/j.compstruct.2019.03.064 This is a PDF file of an unedited manuscript that has been accepted for publication. As a service to our customers we are providing this early version of the manuscript. The manuscript will undergo copyediting, typesetting, and review of the resulting proof before it is published in its final form. Please note that during the production process errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain.