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Journal of Reinforced Plastics and Composites
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Parametric Dynamic Instability Analysis of Laminated Composite Conical Shells

M. Ganapathi

B. P. Patel

Institute of Armament Technology, Girinagar Pune-411025, India

C. T. Sambandam

Centre for Airborne Systems, Bangalore-560 037, India

The dynamic instability analysis of parametrically excited truncated conical shells subjected to periodic in-plane loads is investigated using CO two-noded shear flexible shell element. The present model accounts for in-plane and rotary inertia effects. The boundaries of the principal instability region obtained here are conveniently represented in the non-dimensional excitation frequency-non-dimensional load amplitude plane. The influences of various parameters such as cone orthotropicity, cone angle, ply-angle and elastic edge restraint on dynamic stability are brought out.

Key Words: conical shells • instability • composite • finite element • frequency

Journal of Reinforced Plastics and Composites, Vol. 18, No. 14, 1336-1346 (1999)
DOI: 10.1177/073168449901801405
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S. K. Sahu and P. K. Datta
Parametric Resonance Characteristics of Laminated Composite Doubly Curved Shells Subjected to Non-Uniform Loading
Journal of Reinforced Plastics and Composites, December 1, 2001; 20(18): 1556 - 1576.
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