Proceedings Vol. 8 (2002)
INŽENÝRSKÁ MECHANIKA 2002
ENGINEERING MECHANICS 2002
May 13 – 16, 2002, Svratka, Czech Republic
Copyright © 2002 Institute of Mechanics of Solids, Faculty of Mechanical Engineering, Bruno University of Technology, Brno
ISSN 1805-8248 (printed)
ISSN 1805-8256 (electronic)
list of papers scientific commitee
pages 261 - +6p., full text
The paper deals with evaluation and analyzing of stresses in rubber cylindrical specimen which was twisted up to large deformation. Ogden hyperelastic nonlinear model was used for rubber material modelling. Problem was solved using FEM (ANSYS, MARC). A comparison with small deformation results showed that some other stress tensor components can be substantial. Resultant force response was compared with the experimental one. The results show the impossibility of stress evaluation via simple analytical equations of linear elasticity. Therefore the twist-test is not suitable material test for rubberlike materials.
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