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

R.F. Kristensen; Kim Lau Nielsen; Lars Pilgaard Mikkelsen

doi:10.1016/j.compstruct.2007.04.025

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

R.F. Kristensen
, Kim Lau Nielsen
, Lars Pilgaard Mikkelsen

Technical University of Denmark

Research output: Contribution to journal › Journal article › Research › peer-review

Abstract

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 language	English
Journal	Composite Structures
Volume	83
Issue number	3
Pages (from-to)	304-311
ISSN	0263-8223
DOIs	https://doi.org/10.1016/j.compstruct.2007.04.025
Publication status	Published - 2008

Keywords

composite beam
Timoshenko beam theory
constrained damping

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10.1016/j.compstruct.2007.04.025

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title = "Numerical studies of shear damped composite beams using a constrained damping layer",

abstract = "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.",

keywords = "composite beam, Timoshenko beam theory, constrained damping",

author = "R.F. Kristensen and Nielsen, \{Kim Lau\} and Mikkelsen, \{Lars Pilgaard\}",

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language = "English",

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pages = "304--311",

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T1 - Numerical studies of shear damped composite beams using a constrained damping layer

AU - Kristensen, R.F.

AU - Nielsen, Kim Lau

AU - Mikkelsen, Lars Pilgaard

PY - 2008

Y1 - 2008

N2 - 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.

AB - 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.

KW - composite beam

KW - Timoshenko beam theory

KW - constrained damping

U2 - 10.1016/j.compstruct.2007.04.025

DO - 10.1016/j.compstruct.2007.04.025

M3 - Journal article

SN - 0263-8223

VL - 83

SP - 304

EP - 311

JO - Composite Structures

JF - Composite Structures

IS - 3

ER -

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

Abstract

Keywords

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