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Computational Modelling of Spherical Cavity Behaviour in Rubber-Like Solids

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Abstract:

A characteristic rubber failure process, termed cavitation, has been observed and analysed by several authors. This paper deals with the stress concentration effect of a hypothetical void (cavity) that is assumed to be present in rubber-like solids. Commercial software based on finite element method and up-to-date Arruda-Boyce material model is used here for rubber material behaviour modelling. A detailed study of the effects of particular material parameters on the cavity behaviour under far-field hydrostatic tension condition is presented. The results are compared to those, which can be obtained for the case of simple neo-hookean material model of rubber. In opposite to standard crystalline materials there is no general failure criterion applicable for elastomeric materials. This analysis is motivated by the endeavour to determine a general criterion describing the failure of elastomers as a consequence of static loading.

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Periodical:

Materials Science Forum (Volume 482)

Pages:

323-326

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.482.323

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Online since:

April 2005

Authors:

Pavel Skacel, Jiri Bursa

Keywords:

Cavitation, Computational Modelling, Elastomer, Hydrostatic Tension, Rubber, Stress Concentration

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© 2005 Trans Tech Publications Ltd. All Rights Reserved

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