Free-vibration Characteristics of Laminated Angle-ply Non-circular Cylindrical Shells

  • M. Ganapathi Institute of Armament Technology, Pune
  • B. P. Patel Institute of Armament Technology, Pune
  • S. S. Gupta Institute of Armament Technology, Pune
  • K. N. Khatri Directorate of Armament, DRDO HQrs, New Delhi
  • C. T. Sambandam Centre for Airborne Systems, Bangalore
  • S. N. Giri Centre for Military Airworthiness & Certification, Bangalore
DOI: https://doi.org/10.14429/dsj.54.2057
Keywords: Laminated shell, angle-ply, free vibration, non-circular, modes, finite element, elliptical cross section, higher-order shear deformation

Abstract

This paper deals with the free-vibration behaviour of anisotropic laminated angle-ply noncircular cylindrical shells using finite element approach. The formulation is based on first-order
shear deformation theory. The present model accounts for in-plane and rotary inertia effects. A detailed study has been carried out to highlight the effects of shell geometry, cross-sectional
properties, lay-up and ply-angles on the natural frequencies of different types of modes of vibration of non-circular elliptical shell structures.
Published
2003-10-01
How to Cite
Ganapathi, M., Patel, B., Gupta, S., Khatri, K., Sambandam, C., & Giri, S. (2003). Free-vibration Characteristics of Laminated Angle-ply Non-circular Cylindrical Shells. Defence Science Journal, 54(4), 429-442. https://doi.org/10.14429/dsj.54.2057
Issue
Vol 54 No 4
Section
Applied Physics & Fluid Dynamics
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