Abstract
Due to more stringent legal sound regulations and customer demand of quieter products, the acoustic requirements for product design become a major task in the product development. For the requirement for lighter structures, synthetic materials like glass fibers become more prominent in recent designs. For high accurate simulation corresponding material data are needed. But concerning isotropic plastics the Young’s modulus and damping are highly frequency- and temperature-dependent. A novel test to determine the frequency- and temperature-dependent Young’s modulus and damping of isotropic plastics will be shown in this paper. With a special test facility a sample is excited reactionless by a constant repeatable force during measuring the surface velocity. A novel contactless sample suspension is developed. The modal parameters, response frequency and damping, are extracted from these measurements. With the assistance of FEA simulations the Young’s modulus can be adapted step by step to these modal parameters. The Young’s modulus can be extracted frequency- and temperature-dependent.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
References
Catania G, Sorrentino S (2009) Experimental evaluation of the damping properties of beams and thin-walled structures made of polymeric materials. In: Proceedings IMAC-XXVII: conference & exposition on structural dynamics, Orlando, FL, USA
Scheef V, Bendel K, Blaschke P (2005) Vorrichtung und Verfahren zur Durchführung einer experimentellen Modalanalyse, Patent, DE10340138A1, 20050324
Blaschke P, Mueller-Held B (2009) Identification of dynamic young’s modulus and damping of isotropic plastic materials. In: Proceedings IMAC-XXVII: conference & exposition on structural dynamics, Orlando, FL, USA
Acknowledgements
The authors like to thank Artur Zwerschitz for his helpful contribution to manufacturing of the experimental system setup and for assisting the experiments.
Author information
Authors and Affiliations
Corresponding author
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2014 The Society for Experimental Mechanics
About this paper
Cite this paper
Blaschke, P., Schneider, T. (2014). Reactionless Test to Identify Dynamic Young’s Modulus and Damping of Isotropic Plastic Materials. In: Allemang, R., De Clerck, J., Niezrecki, C., Wicks, A. (eds) Topics in Modal Analysis, Volume 7. Conference Proceedings of the Society for Experimental Mechanics Series. Springer, New York, NY. https://doi.org/10.1007/978-1-4614-6585-0_49
Download citation
DOI: https://doi.org/10.1007/978-1-4614-6585-0_49
Published:
Publisher Name: Springer, New York, NY
Print ISBN: 978-1-4614-6584-3
Online ISBN: 978-1-4614-6585-0
eBook Packages: EngineeringEngineering (R0)