Composite and Damping Materials Characterization with an Application to a Car Door
| Autor: | Andrea Giancarlo Airale, Alessandro Fasana, Alessandro Ferraris, Davide Berti Polato, Massimiliana Carello |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
Damping materials
FEM Materials science Damping materials Automotive Oberst test FEM NVH FRF CFRP business.industry Modal analysis Loss factor Noise vibration and harshness Automotive 02 engineering and technology Structural engineering Test method Fibre-reinforced plastic 021001 nanoscience & nanotechnology Oberst test Finite element method 020303 mechanical engineering & transports 0203 mechanical engineering NVH FRF Curve fitting CFRP 0210 nano-technology business Beam (structure) |
| Zdroj: | Mechanisms and Machine Science ISBN: 9783030033194 |
| Popis: | This paper presents the characterization of a Carbon Fibre Reinforced Plastic (CFRP) and a couple of damping materials, particularly suited to the manufacturing process of composites. Young’s modulus and loss factor of each material are defined by means of the Oberst beam test method, where a specific curve fitting technique replaces the half-power bandwidth procedure to ameliorate the estimates of the parameters. Effects of both temperature and aging are reported, since operational conditions are various and time duration very important for most components, for sure in the automotive sector. Two sandwich beams, formed by the sequence CFRP/damping material/CFRP, are also tested to experimentally verify the effectiveness of this configuration to provide damping. Finally, two complete car doors have been produced with a CFRP composite, with and without an intermediate damping layer. Their modal parameters have been extracted by an experimental modal analysis and show that the damping material can effectively ameliorate the noise and vibration response of the structure. |
| Databáze: | OpenAIRE |
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