Journal article
Numerical studies of shear damped composite beams using a constrained damping layer
Technical University of Denmark1
Solid Mechanics, Department of Mechanical Engineering, Technical University of Denmark2
Department of Mechanical Engineering, Technical University of Denmark3
Composites and Materials Mechanics, Materials Research Division, Risø National Laboratory for Sustainable Energy, Technical University of Denmark4
Materials Research Division, Risø National Laboratory for Sustainable Energy, Technical University of Denmark5
Risø National Laboratory for Sustainable Energy, Technical University of Denmark6
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.
| Language: | English |
|---|---|
| Year: | 2008 |
| Pages: | 304-311 |
| ISSN: | 18791085 and 02638223 |
| Types: | Journal article |
| DOI: | 10.1016/j.compstruct.2007.04.025 |
| ORCIDs: | Nielsen, Kim Lau and Mikkelsen, Lars Pilgaard |
