000021450 001__ 21450
000021450 005__ 20170522124355.0
000021450 04107 $$aeng
000021450 046__ $$k2017-05-15
000021450 100__ $$aŠulc, P.
000021450 24500 $$aPROPOSAL OF HYPERELASTIC PROPORTIONAL DAMPING AS DISSIPATED ENERGY MODEL OF HARD RUBBERS

000021450 24630 $$n23.$$pEngineering Mechanics 2017
000021450 260__ $$bBrno University of Technology, Institute of Solid Mechanics, Mechatronics and Biomechanics, Brno
000021450 506__ $$arestricted
000021450 520__ $$2eng$$aThe 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 testrig 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.

000021450 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000021450 653__ $$aTorsion vibration, Large deformation, Hyperelasticity, Dissipated energy, Deformation energy.

000021450 7112_ $$aEngineering Mechanics 2017$$cSvratka, CZ$$d2017-05-15 / 2017-05-18$$gEM2017
000021450 720__ $$aŠulc, P.$$iCibulka, J.$$iKošina, J.$$iBula, V.$$iPešek, L.
000021450 8560_ $$ffischerc@itam.cas.cz
000021450 8564_ $$s880675$$uhttps://invenio.itam.cas.cz/record/21450/files/0942.pdf$$yOriginal version of the author's contribution in proceedings, page 942, section DYN.
000021450 962__ $$r21225
000021450 980__ $$aPAPER