Journal
INTERNATIONAL JOURNAL OF NON-LINEAR MECHANICS
Volume 45, Issue 4, Pages 409-418Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.ijnonlinmec.2009.12.013
Keywords
Shells; Nonlinear theory; Shear deformation; Vibrations; Nonlinear vibrations; Rotary inertia
Categories
Funding
- NSERC
- Canada Research Chair
- Canada Foundation
- McGill University
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A consistent higher-order shear deformation non-linear theory is developed for shells of generic shape, taking geometric imperfections into account. The geometrically non-linear strain-displacement relationships are derived retaining full non-linear terms in the in-plane displacements; they are presented in curvilinear coordinates in a formulation ready to be implemented. Then, large-amplitude forced vibrations of a simply supported, laminated circular cylindrical shell are studied (i) by using the developed theory, and (ii) keeping only non-linear terms of the von 'Orman type. Results show that inaccurate results are obtained by keeping only non-linear terms of the von Karman type for vibration amplitudes of about two times the shell thickness for the studied case. (C) 2010 Elsevier Ltd. All rights reserved.
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