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New test approach and evaluation of dynamic and thermal parameters of elastomers
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SYSNO ASEP 0331718 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Ostatní články Title New test approach and evaluation of dynamic and thermal parameters of elastomers Title Nové experimentální přístupy pro testování a vyhodnocení dynamických a teplotních parametrů elastomerů Author(s) Pešek, Luděk (UT-L) RID
Vaněk, František (UT-L) RID
Procházka, Pavel (UT-L) RID, ORCID
Bula, Vítězslav (UT-L) RID
Cibulka, Jan (UT-L)Source Title Engineering Mechanics. - : Association for Engineering Mechanics - ISSN 1802-1484
Roč. 16, č. 3 (2009), s. 197-207Number of pages 11 s. Language eng - English Country CZ - Czech Republic Keywords rubber ; thermo-mechanics parameters ; fatigue Subject RIV BI - Acoustics R&D Projects GA101/09/1166 GA ČR - Czech Science Foundation (CSF) CEZ AV0Z20760514 - UT-L (2005-2011) Annotation The design, realization of experiment and discussion on results of the new test approach for evaluation of thermo-visco-elastic parameters are herein presented. The main attention is devoted to a kinematically excited rubber beam specimen under transient resonant sweep excitation. Mechanical material characteristics, i.e. Young modulus and loss angle, are identified from analytical formulas of frequency response function based on measured dynamic loading and response signals. Heat material constants were estimated indirectly by numerical thermo-mechanical FE model and matching numerical and experimental results. The „sweep” regime tests serve for estimation of thermal and mechanical dependences. In this way the dependence of Young modulus on minus temperatures were tested in the temperature chamber. Long-term fatigue tests with cyclic resonant loading enable analysis of material degradation, such as hardening and permanent deformations. 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 2010
Number of the records: 1