Abstract
AbstractThe investigated hybrid carbon fiber reinforced plastics-elastomer-metal laminates (HyCEML) offer the potential of tailored structural materials with adaptable damping properties. Conventional fiber metal laminates, like glass laminate aluminum reinforced epoxy are already widely spread in the aviation industry owing to their outstanding fatigue behavior. By integrating an elastomeric interlayer, the glass fibers can be substituted by carbon fibers and damping properties of these laminates can be adjusted. The viscoelastic interlayer dissipates energy within the laminate by inducing shear strain during bending, which is commonly known as constrained layer damping. The aim of this paper is the description of the vibration and damping behavior of HyCEML over a wide temperature and frequency range by using different test methods. Dynamic mechanical analysis is used for the individual polymeric constituents and coupon specimens and modal analysis is used with different specimen geometries up to a component sized panel. In addition, analytical and numerical approaches complement the experiments and lead to a deeper understanding of the vibration and damping behavior. Owing to the high damping, already at frequencies of 5 kHz only running waves can be detected for the investigated panel size. The discussion of different test methods helps to identify material and wavelength dependent effects, but also possible adverse effects of certain methods.
Funder
Karlsruher Institut für Technologie (KIT)
Publisher
Springer Science and Business Media LLC
Reference53 articles.
1. Kerwin, EM.: Damping of flexural waves by a constrained viscoelastic layer. J. Acoust. Soc. Am 31(7), 952 962 (1959)
2. Rao, MD.: Recent applications of viscoelastic damping for noise control in automobiles and commercial airplanes. J. Sound Vib. 262(3), 457 474 (2003). https://doi.org/10.1016/S0022-460X(03)00106-8
3. Fan, R., Meng, G., Yang, J., He, C.: Experimental study of the effect of viscoelastic damping materials on noise and vibration reduction within railway vehicles. J Sound Vib. 319(1–2), 58 76 (2009) https://doi.org/10.1016/j.jsv.2008.03.071
4. Amoroso, F., De Fenza, A. Monaco, E., Pecora, R., Lecce, L.: Experimental evaluation of vibro-acoustic behaviour of composite fuselage structures realized with embedded viscoelastic damping treatments, in: 18th International Congress on Sound and Vibration, Vol. 4 pp. 3197–3204. (2011)
5. Ross, D., Ungar, E.E., Kerwin, E.M.: Damping of Plate Flexural Vibrations byMeans of Viscoelastic Laminae, Structural Damping, ASME New York 49–87 (1959)
Cited by
4 articles.
订阅此论文施引文献
订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献