The 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.

所研究的混合碳纤维增强塑料-弹性体-金属层压板 (HyCEML) 提供了具有适应性阻尼特性的定制结构材料的潜力。传统的纤维金属层压板，如玻璃层压铝增强环氧树脂，由于其出色的疲劳性能，已经在航空工业中广泛应用。通过集成弹性夹层，玻璃纤维可以被碳纤维替代，并且可以调节这些层压板的阻尼特性。粘弹性夹层通过在弯曲过程中引起剪切应变来耗散层压板内的能量，这通常称为约束层阻尼。本文的目的是通过使用不同的测试方法描述 HyCEML 在很宽的温度和频率范围内的振动和阻尼行为。动态力学分析用于单个聚合物成分和试样试样，模态分析用于不同几何形状的试样，直至组件尺寸的面板。此外，分析和数值方法补充了实验，并导致对振动和阻尼行为的更深入了解。由于高阻尼，在 5 kHz 的频率下，对于所研究的面板尺寸，只能检测到行波。对不同测试方法的讨论有助于确定材料和波长相关的影响，但也有助于确定某些方法可能产生的不利影响。分析和数值方法补充了实验，并导致对振动和阻尼行为的更深入了解。由于高阻尼，在 5 kHz 的频率下，对于所研究的面板尺寸，只能检测到行波。对不同测试方法的讨论有助于确定材料和波长相关的影响，但也有助于确定某些方法可能产生的不利影响。分析和数值方法补充了实验，并导致对振动和阻尼行为的更深入了解。由于高阻尼，在 5 kHz 的频率下，对于所研究的面板尺寸，只能检测到行波。对不同测试方法的讨论有助于确定材料和波长相关的影响，但也有助于确定某些方法可能产生的不利影响。