Numerical studies of shear damped composite beams using a constrained damping layer
RF Kristensen, KL Nielsen, LP Mikkelsen - Composite structures, 2008 - Elsevier
RF Kristensen, KL Nielsen, LP Mikkelsen
Composite structures, 2008•ElsevierComposite 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 Σ! 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 …
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 Σ! 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 …
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 Σ!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.
Elsevier
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