Modeling flexural damping responses of composite laminates

Nai Ren Chang, Jia-Lin Tsai*

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The flexural damping behaviors of composite laminates were characterized analytically in this study. A 2-D analytical model was developed by extending Ni-Adams model in conjunction with the laminated plate theory to include the energy dissipation contributed by the laminar stresses of σxy and σyy. The specific damping capacity (SDC) of the composite was then determined from the energy dissipation concept, which was defined as the ratio of the dissipated energy and the stored energy for per circle of vibration. The validation of the 2-D model was conducted by comparing the specific damping capacity of [0/-60/60]s and [0/90/45/-45] s laminates with the experimental data and the finite element (FEM) results. In addition, the effects of interlaminar stress on the flexural damping responses of laminated plates were also examined in the 3-D FEM analysis. Results indicated that the interlaminar stress effect may not be so significant that the current 2-D model is suitable for the evaluation of the damping responses of the laminates. Furthermore, the present predictions, as compared to the Ni-Adam and Adams-Meheri model, normally demonstrate better agreements with the experimental data and the FEM results.

Original languageEnglish
Title of host publicationProgress of Composites 2008 in Asia and Australasia - Proceedings of the 6th Asian-Australasian Conference on Composite Materials, ACCM 2008
Pages343-346
Number of pages4
StatePublished - 1 Dec 2008
Event6th Asian-Australasian Conference on Composite Materials: Progress of Composites 2008 in Asia and Australasia, ACCM 2008 - Kumamoto, Kyushu, Japan
Duration: 23 Sep 200826 Sep 2008

Publication series

NameProgress of Composites 2008 in Asia and Australasia - Proceedings of the 6th Asian-Australasian Conference on Composite Materials, ACCM 2008

Conference

Conference6th Asian-Australasian Conference on Composite Materials: Progress of Composites 2008 in Asia and Australasia, ACCM 2008
CountryJapan
CityKumamoto, Kyushu
Period23/09/0826/09/08

Keywords

  • Analytical model
  • Composite laminates
  • Damping properties
  • Finite element analysis
  • Flexural vibration

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    Chang, N. R., & Tsai, J-L. (2008). Modeling flexural damping responses of composite laminates. In Progress of Composites 2008 in Asia and Australasia - Proceedings of the 6th Asian-Australasian Conference on Composite Materials, ACCM 2008 (pp. 343-346). (Progress of Composites 2008 in Asia and Australasia - Proceedings of the 6th Asian-Australasian Conference on Composite Materials, ACCM 2008).