A shape memory polymer (SMP), the tBA/PEGDMA, is elaborated and characterized. The dynamic mechanical characterization of this SMP highlights promising damping properties. The frequency and temperature dependency of the SMP is represented by a viscoelastic model allowing the introduction of the material in the design process of complex structures. A composite sandwich is developed by coupling the SMP with aluminum skins. A finite element model is developed for modeling the behavior of the SMP when integrated in a sandwich structure. The damping performances obtained by the numerical approach are validated experimentally using modal analysis. The experimental results are found to be in good agreement with the predictions of the finite element model. Furthermore, it is found that the controlled heating of the SMP core allows damping the structure over a wide frequency range. The SMP core temperature is tuned from the time-temperature superposition through a calibration curve to correspond to optimal values of damping ratio in the frequency range of interest; a vibration attenuation of about 20dB is observed.
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ASME 2015 Conference on Smart Materials, Adaptive Structures and Intelligent Systems
September 21–23, 2015
Colorado Springs, Colorado, USA
Conference Sponsors:
- Aerospace Division
ISBN:
978-0-7918-5729-8
PROCEEDINGS PAPER
Damping Control in a Sandwich Structure With SMP Core
Pauline Butaud,
Pauline Butaud
University of Franche-Comté, Besançon, France
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Morvan Ouisse,
Morvan Ouisse
FEMTO-ST Applied Mechanics, Besançon, France
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Emmanuel Foltête
Emmanuel Foltête
FEMTO-ST Applied Mechanics, Besançon, France
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Pauline Butaud
University of Franche-Comté, Besançon, France
Morvan Ouisse
FEMTO-ST Applied Mechanics, Besançon, France
Emmanuel Foltête
FEMTO-ST Applied Mechanics, Besançon, France
Paper No:
SMASIS2015-8844, V001T03A007; 6 pages
Published Online:
January 11, 2016
Citation
Butaud, P, Ouisse, M, & Foltête, E. "Damping Control in a Sandwich Structure With SMP Core." Proceedings of the ASME 2015 Conference on Smart Materials, Adaptive Structures and Intelligent Systems. Volume 1: Development and Characterization of Multifunctional Materials; Mechanics and Behavior of Active Materials; Modeling, Simulation and Control of Adaptive Systems. Colorado Springs, Colorado, USA. September 21–23, 2015. V001T03A007. ASME. https://doi.org/10.1115/SMASIS2015-8844
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