Wide Scale Characterization and Modeling of the Vibration and Damping Behavior of CFRP-Elastomer-Metal Laminates—Comparison and Discussion of Different Test Setups

Abstract The investigated hybrid carbon fiber reinforced plastics-elastomer-metal laminates (HyCEML) offer the potential of tailored structural materials with adaptable damping properties. Conventional metal laminates, like glass laminate aluminum epoxy are already widely spread in aviation industry owing to their outstanding fatigue behavior. By integrating an elastomeric interlayer, fibers can be substituted by and properties these adjusted. viscoelastic interlayer dissipates energy within inducing shear strain during bending, which is commonly known as constrained layer damping. aim this paper description vibration behavior HyCEML over a wide temperature frequency range using different test methods. Dynamic mechanical analysis used for individual polymeric constituents coupon specimens modal specimen geometries up component sized panel. In addition, analytical numerical approaches complement experiments lead deeper understanding Owing high damping, at frequencies 5 kHz only running waves detected panel size. discussion methods helps identify material wavelength dependent effects, but also possible adverse effects certain