2025/01/01 by Jan Boysen, Andreas Wurzinger, Christian Adams +3 · 1 voice
Materials Science · Engineering · #Material Properties and Applications #Polymer Science and Applications #Elasticity and Wave Propagation
paper · pdf · doi:10.1121/2.0002119
openalex publication_date 2025/01/01 · openalex created_date 2025/10/14 · openalex updated_date 2026/07/29
Mechanical damping in fibre reinforced plastics (FRP) is located in the lower regime of the material spectrum, similar to many constructive metals, such as steel or aluminium.As FRP combine high specific stiffness and good tensile properties, they are preferably used in lightweight constructions in transportation, as they can reduce the power consumption and, as a result, the operating costs and the emitted greenhouse gases.The reduction of greenhouse gases also plays a role in the material generation process, where materials from natural resources, as plant fibres and biobased plastics, are of interest.Modelling and improving damping in FRP has a meaningful impact, as stiff constructions often suffer from fatigue.However, in passenger transportation and the consumer industry, acoustics also plays a great role in satisfying the needs of the passengers or consumers.In both cases, mechanical damping comes into play.Damping in FRP has been measured, modelled, and enhanced so far, but the need for further developments and bio-based composites leads to materials with similar but different properties.This paper presents the state of the art in enhancing damping in FRP for acoustic applications, specifically discussing passive damping measures.