Dynamic Analysis of Thin Composite Cylindrical and Spherical Shells

Authors

  • Qusai H. Jebur Technical College-Baghdad Foundation of Technical Education

Abstract

In this work, an investigation for the dynamic analysis of thin composite cylindrical and spherical shells is presented. The analytical solution is based upon the higher order shear deformation theory of elastic shells from which the developed equations are derived to deal with orthotropic layers. This will cover the determination of the fundamental natural frequencies and mode shapes for simply supported composites cylindrical and spherical shells.

      The analytical results obtained by using the derived equations were confirmed by the finite element technique using the well known Ansys package. The results have shown a good agreement with a maximum percentage of discrepancy, which gives a confidence of using this solution in prediction the dynamic analysis of cylindrical and spherical shells.      

Downloads

Download data is not yet available.

References

[1] Timoshenko "Theory of plates and shells"
[2] Humayun R H. Kabir,"Application of linear shallow shell theory of reissner to frequency response of thin cylindrical panel with arbitrary lamination" comp.stru. vol. 56, 2002.
[3] H.M Wang "Dynamic solution of multilayered orthotropic piezoelectric hollow cylinder for axisymmetric plane strain problems" Int.J of solid and strctures,vol.42,2004
[4] Rong-Tyai wanga and Zung-Xian Lin "Vibration analysis of ring-stiffened cross-ply laminated cylindrical shell" J.of sound and vibration, vol.295, 2006.
[5] Penzes L.and Buring G "Free vibration of thin isotropic oblate spheroidas shells"Generas Dynamic Report No GD/C-BTD 65-113, 1956
[6] Al-Najim , F.A"An Investigation into the free ax. Symmetric Vibration charachterstks shell" M.Sc thesis, university of Baghdad, 1990
[7] Al-Azzawy W. I. “Fatique and Vibration Characteristics of Laminated Composite Shelles of Revolution” Ph. D thesis, University of Baghdad, 2007
[8] Reddy, J. N. and Lium C. F. “A Higher–Order Shear Deformation Theory of Laminated Elastic Shells”, International Journal of Eng. Since, Vol. 23, No.3, 1985
[9] B.M Pandya and T Kant "Finite Element of Laminated Composite Plates using a Higher Order Displacement Model", Composite Science and Technology 1988.
[10] George Lubin "Hand Book of Composites", Van Nostrand Reimhold Compony, Inc, 1982.

Downloads

Published

2018-12-01

How to Cite

Dynamic Analysis of Thin Composite Cylindrical and Spherical Shells. (2018). Al-Khwarizmi Engineering Journal, 4(2), 69-75. https://alkej.uobaghdad.edu.iq/index.php/alkej/article/view/543

Publication Dates