Numerical studies of shear damped composite beams using a constrained damping layer

Publication: Research - peer-reviewJournal article – Annual report year: 2008

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Composite beams containing one or more damping layers are studied numerically. The work is based on a semi-analytical model using a Timoshenko beam theory and a full 2D finite element model. The material system analysed, is inspired by a train wagon suspension system used in a EUREKA project Sigma!1841. For the material system, the study shows that the effect of the damping layer is strongly influenced by the presence of a stiff constraining layer, that enforces large shear strain amplitudes. The thickness of the damping rubber layer itself has only a minor influence on the overall damping. In addition, a large influence of ill positioned cuts in the damping layer is observed.
Original languageEnglish
JournalComposite Structures
Publication date2008
Volume83
Issue3
Pages304-311
ISSN0263-8223
DOIs
StatePublished
CitationsWeb of Science® Times Cited: 6

Keywords

  • composite beam, Timoshenko beam theory, constrained damping
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