Developments in dynamic testing of rubber compounds: assessment of non-linear effects

In the present work, a test method to characterize the dynamic behaviour of rubber compounds by electrodynamic shaker (ES) in the frequency range of 10–1000 Hz was developed. Data of dynamic moduli of two different rubber compounds were determined through the analysis of the transmissibility of a su...

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Bibliographic Details
Published in:Polymer testing 2003-09, Vol.22 (6), p.681-687
Main Authors: Ramorino, G, Vetturi, D, Cambiaghi, D, Pegoretti, A, Ricco, T
Format: Article
Language:English
Subjects:
Applied sciences
Dynamic properties
Dynamic testing
Exact sciences and technology
Polymer industry, paints, wood
Properties and testing
Rubbers
Technology of polymers
Testing and control
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Summary:In the present work, a test method to characterize the dynamic behaviour of rubber compounds by electrodynamic shaker (ES) in the frequency range of 10–1000 Hz was developed. Data of dynamic moduli of two different rubber compounds were determined through the analysis of the transmissibility of a suitably designed test system. The results were compared with those of dynamic moduli master curves obtained through frequency–temperature reduction of data measured by a commercial dynamic mechanical thermal analyser (DMTA), by scanning temperature at various frequencies in the range 0.3–30 Hz. Very good agreement of the data obtained by the two different aproaches were found, in spite of the different range of frequency explored by the two instruments, ES and DMTA, respectively. For one of the material examined, non-linear effects at low strain amplitudes were investigated by the two experimental methods considered.
ISSN:0142-9418
1873-2348
DOI:10.1016/S0142-9418(02)00176-9