Název: Proposal of hyperelastic proportional damping as dissipated energy model of hard rubbers
Autoři: Šulc, Petr ; Pešek, Luděk ; Bula, Vítězslav ; Košina, Jan ; Cibulka, Jan
Typ dokumentu: Příspěvky z konference
Konference/Akce: Engineering Mechanics 2017 /23./, Svratka (CZ), 20170515
Rok: 2017
Jazyk: eng
Abstrakt: 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.
Klíčová slova: deformation energy; dissipated energy; hyperelasticity; large deformation; torsion vibration
Číslo projektu: GA16-04546S (CEP)
Zdrojový dokument: Engineering Mechanics 2017, ISBN 978-80-214-5497-2, ISSN 1805-8248

Instituce: Ústav termomechaniky AV ČR (web)
Informace o dostupnosti dokumentu: Dokument je dostupný v příslušném ústavu Akademie věd ČR.
Původní záznam: http://hdl.handle.net/11104/0273604

Trvalý odkaz NUŠL: http://www.nusl.cz/ntk/nusl-363524


Záznam je zařazen do těchto sbírek:
Věda a výzkum > AV ČR > Ústav termomechaniky
Konferenční materiály > Příspěvky z konference
 Záznam vytvořen dne 2017-08-31, naposledy upraven 2018-03-27.


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