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The large rotations theory of elasto‐viscoplastic shells subjected to the dynamic and thermal loads

The large rotations theory of elasto‐viscoplastic shells subjected to the dynamic and thermal loads In this paper, the problem of the elasto‐viscoplastic dynamic and thermal behaviour of geometrically non‐linear plates and shells is studied under the assumption of small strains and large rotations. The first‐order shear deformation shell theory and the Chaboche constitutive viscoplastic model taking the temperature fields into account are used for computations. An effective procedure using the central difference method of solving the equations of motion is applied. The trapezoidal method is used to integrate the constitutive viscoplastic law. A nine node isoparametric shell element has been utilised for the finite element algorithm. Finally, some examples are presented and compared with the results obtained by moderate rotation theory. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Engineering Computations Emerald Publishing

The large rotations theory of elasto‐viscoplastic shells subjected to the dynamic and thermal loads

Engineering Computations , Volume 20 (4): 24 – Jun 1, 2003

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Publisher
Emerald Publishing
Copyright
Copyright © 2003 MCB UP Ltd. All rights reserved.
ISSN
0264-4401
DOI
10.1108/02644400310476306
Publisher site
See Article on Publisher Site

Abstract

In this paper, the problem of the elasto‐viscoplastic dynamic and thermal behaviour of geometrically non‐linear plates and shells is studied under the assumption of small strains and large rotations. The first‐order shear deformation shell theory and the Chaboche constitutive viscoplastic model taking the temperature fields into account are used for computations. An effective procedure using the central difference method of solving the equations of motion is applied. The trapezoidal method is used to integrate the constitutive viscoplastic law. A nine node isoparametric shell element has been utilised for the finite element algorithm. Finally, some examples are presented and compared with the results obtained by moderate rotation theory.

Journal

Engineering ComputationsEmerald Publishing

Published: Jun 1, 2003

Keywords: Shells; Plates; Temperature; Viscoplasticity; Dynamics

References

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