Proceedings Vol. 12 (2006)
ENGINEERING MECHANICS 2006
May 15 – 18, 2006, Svratka, Czech Republic
Copyright © 2006 Institute of Theoretical and Applied Mechanics, Academy of Sciences of the Czech Republic, Prague
ISSN 1805-8248 (printed)
ISSN 1805-8256 (electronic)
list of papers scientific commitee
pages 234 - +6p., full text
A viscoelastic model for the fully three-dimensional stress and deformation response of cord-reinforced rubber composites at finite strains requires the knowledge of material parameters of their components. The relaxation response of each compound of the composite is modelled separately and the global response is obtained by an assembly of all contributions. This study summarizes the investigation of the non-linear performance of polyamide cords, when undergoing static tensile tests, stress relaxation tests and dynamical tensile loading. The description of the time-dependent performance is based on a two-component model, which comprises elastic and viscous contribution. An appropriate relaxation function is introduced that is based on the Prony series approximation of the hereditary integral model of the material tested. The experimental procedures and the analysis of the experimental data are described.
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