Engineering Mechanics

International Conference

Proceedings Vol. 9 (2003)


May 11 – 15, 2003, Svratka, Czech Republic
Editors: Jiří Náprstek and Cyril Fischer

Copyright © 2003 Institute of Theoretical and Applied Mechanics, Academy of Sciences of the Czech Republic, v.v.i., Prague

ISBN 80-86246-18-3 (printed, Extended Abstracts)
ISSN 1805-8248 (printed)
ISSN 1805-8256 (electronic)

list of papers scientific commitee

Deformation analysis of an inflated cylindrical membrane of composite with rubber matrix reinforced by textile cords
Marvalová B., Tran H.N.
pages 194 - +8p., full text

We present the orthotropic hyperelastic material model for numerical simulation of the loading of the cylindrical membrane. The coefficients of strain energy function of the hyperelastic orthotropic material are fitted to the experimental results by the non-linear least squares method. The components of the deformation gradient are determined from measured displacements of the grid points drawn on the cylindrical surface of the spring. The stress tensor is calculated from the membrane theory. The deformed shape of the spring surface is measured from the photographic records. The strain energy function is expressed in terms of tensorial invariants with regard to the assumed material symmetry. The deformation of air-spring is calculated by solving the system of five first-order ordinary differential equations with the material constitutive law and proper boundary conditions.

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