Number of the records: 1
Proposal of hyperelastic proportional damping as dissipated energy model of hard rubbers
- 1.
SYSNO ASEP 0474714 Document Type C - Proceedings Paper (int. conf.) R&D Document Type Conference Paper Title Proposal of hyperelastic proportional damping as dissipated energy model of hard rubbers Author(s) Šulc, Petr (UT-L) RID
Pešek, Luděk (UT-L) RID
Bula, Vítězslav (UT-L) RID
Košina, Jan (UT-L) RID
Cibulka, Jan (UT-L)Source Title Engineering Mechanics 2017. - Brno : University of technology, Institute of Solid Mechanics, Mechatronics and Biomechanics, 2017 / Fuis V. - ISSN 1805-8248 - ISBN 978-80-214-5497-2 Pages s. 942-945 Number of pages 4 s. Publication form Print - P Action Engineering Mechanics 2017 /23./ Event date 15.05.2017 - 18.05.2017 VEvent location Svratka Country CZ - Czech Republic Event type EUR Language eng - English Country CZ - Czech Republic Keywords torsion vibration ; large deformation ; hyperelasticity ; dissipated energy ; deformation energy Subject RIV BI - Acoustics OECD category Applied mechanics R&D Projects GA16-04546S GA ČR - Czech Science Foundation (CSF) Institutional support UT-L - RVO:61388998 Annotation The paper deals with a stress analysis of hard rubber under large torsion deformations. This study was motivated by effort to find the dependency the dissipated energy on the deformation energy. Based on the results of an experiment, a function of dissipation energy of hard rubbers for finite strains using the theory hyperelasticity was proposed herein analogically as a proportional damping for elastic theory. Samples of hard rubber of different hardness (EPDM, Silicone) were dynamically tested on the developed torsional test-rig at different frequencies, amplitudes. First the Mooney Rivlin model (MRM) for a shear case of loading was analytically developed and then MRM constants were attained by fitting of the MRM to the experimental torsion-deformation curve. These constants were used to obtain the deformation energy of the MRM models. The coefficients of hyperelastic proportional damping relating a dissipated energy to a strain energy were evaluated for tested rubbers on the basis of experimental results. Workplace Institute of Thermomechanics Contact Marie Kajprová, kajprova@it.cas.cz, Tel.: 266 053 154 ; Jana Lahovská, jaja@it.cas.cz, Tel.: 266 053 823 Year of Publishing 2018
Number of the records: 1