Abstract
This paper presents a study on quantitative prediction and understanding of timeharmonic wave characteristics in damped plates. Material dissipation is modelled by using complex-valued velocities of free dilatation and shear waves in an unbounded volume. A Wave Finite Element (WFE) method is used to solve the Rayleigh-Lamb problem for a viscoelastic plate in plain strain, and results are validated using a Finite Product (FP) method. A numerical example concerning a viscoelastic panel is then presented in order to illustrate and discuss the role of dissipation in the cut-off phenomenon and in the phenomenon of veering for dispersion curves. These phenomena are explained in more detail considering a simple model, which allows accurate asymptotic analysis of the perturbation of dispersion curves in the regions of cut-off and veering.
| Originalsprog | Engelsk |
|---|---|
| Titel | ECCOMAS Thematic Conference - COMPDYN 2013: 4th International Conference on Computational Methods in Structural Dynamics and Earthquake Engineering, Proceedings - An IACM Special Interest Conference |
| Redaktører | M. Papadrakakis, V. Papadopoulos, V. Plevris |
| Antal sider | 15 |
| Forlag | National Technical University of Athens |
| Publikationsdato | 1 jan. 2013 |
| Sider | 2118-2132 |
| ISBN (Trykt) | 978-960-99994-2-7 |
| Status | Udgivet - 1 jan. 2013 |
| Begivenhed | COMPDYN 2013: 4th ECCOMAS Thematic Conference on Computational Methods in Structural Dynamics and Earthquake Engineering - Kos Island, Grækenland Varighed: 12 jun. 2013 → 14 jun. 2013 http://www.compdyn2013.org/ |
Konference
| Konference | COMPDYN 2013 |
|---|---|
| Land/Område | Grækenland |
| By | Kos Island |
| Periode | 12/06/2013 → 14/06/2013 |
| Internetadresse |