Vibro-acoustic characterisation of thermoplastic fibre reinforced composites

Matthias Klaerner, Steffen Marburg, Lothar Kroll

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

3 Scopus citations

Abstract

Improving efficient products and processes, endless fibre-reinforced composites offer a high potential in adjustability of material parameters and aptitude for mass production at the same time. Due to high material costs and complex manufacturing techniques, a widespread application has not started yet. Dynamic properties, however, are essential in requirement specifications for newly developed devices caused by an increasing dynamic and acoustic sensitivity of lightweight structures. The shortage of natural resources demands for efficient and low-cost materials with excellent mechanical properties, both, for dynamic and for static load cases. In this paper, static and dynamic material properties of thermoplastic composites with glass- and carbon-fibre reinforcements are determined. In detail, the investigations are based on the experimental modal analysis of plate specimens to examine the elastic engineering constants and characterise the damping behaviour of the composites. Furthermore, the acoustic analysis, tests of free oscillation of thin beams and Finite-Element-Models of experimental setups are for the validation of the material parameters. The results of all investigations are compared to state-of-the-art metal-based composites with plastic midsurfaces being typically used for reduction of structure born noise and vibration.

Original languageEnglish
Title of host publication20th International Congress on Acoustics 2010, ICA 2010 - Incorporating Proceedings of the 2010 Annual Conference of the Australian Acoustical Society
Pages1473-1478
Number of pages6
StatePublished - 2010
Externally publishedYes
Event20th International Congress on Acoustics 2010, ICA 2010 - Incorporating the 2010 Annual Conference of the Australian Acoustical Society - Sydney, NSW, Australia
Duration: 23 Aug 201027 Aug 2010

Publication series

Name20th International Congress on Acoustics 2010, ICA 2010 - Incorporating Proceedings of the 2010 Annual Conference of the Australian Acoustical Society
Volume2

Conference

Conference20th International Congress on Acoustics 2010, ICA 2010 - Incorporating the 2010 Annual Conference of the Australian Acoustical Society
Country/TerritoryAustralia
CitySydney, NSW
Period23/08/1027/08/10

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