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Frequency and amplitude dependence of the axial and radial stiffness of carbon-black filled rubber bushings
KTH, School of Engineering Sciences (SCI), Aeronautical and Vehicle Engineering, MWL Structural and vibroacoustics.
KTH, School of Engineering Sciences (SCI), Aeronautical and Vehicle Engineering, MWL Structural and vibroacoustics.ORCID iD: 0000-0001-5760-3919
Department of Applied Mechanics, CEIT and Tecnun (University of Navarra).
Department of Applied Mechanics, CEIT and Tecnun (University of Navarra).
2007 (English)In: Polymer testing, ISSN 0142-9418, E-ISSN 1873-2348, Vol. 26, no 5, 629-638 p.Article in journal (Refereed) Published
Abstract [en]

The frequency and amplitude dependent dynamic behavior of carbon-black filled rubber bushings is experimentally investigated for a commercially available bushing in the axial and radial directions. Based on measurement observations, models for the axial and radial dynamic stiffness of rubber bushings are developed. The amplitude dependence-referred to as the Fletcher-Gent effect and mainly caused by the presence of carbon-black fillers in the rubber-is included in the analytical models by means of equivalent shear moduli, which result from applying a separable elastic, viscoelastic and friction material model to equivalent strains of the non-homogeneous strain states inside the bushing when subjected to axial or radial deflections. Good correlations between measurements and the axial and radial models at amplitudes of 0.1, 0.2 and 0.5 mm from 5 to 155 Hz-when the material parameters are achieved from axial measurements at 0.1 mm-prove the accuracy of both stiffness models.

Place, publisher, year, edition, pages
2007. Vol. 26, no 5, 629-638 p.
Keyword [en]
rubber bushing, carbon black, Fletcher-Gent effect, equivalent shear modulus, dynamic stiffness, dynamic properties, behavior, model, elastomers
National Category
Applied Mechanics
Identifiers
URN: urn:nbn:se:kth:diva-16823DOI: 10.1016/j.polymertesting.2007.03.011ISI: 000248298100009Scopus ID: 2-s2.0-34250873844OAI: oai:DiVA.org:kth-16823DiVA: diva2:334866
Note

QC 20100525

Available from: 2010-08-05 Created: 2010-08-05 Last updated: 2017-12-12Bibliographically approved

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Kari, Leif

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