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Proceedings Paper

Shear thickening fluids as a tunable damping element: experimental results and modeling
Author(s): Christian Fischer; Abdelkrim Bennani; Christopher J. G. Plummer; Véronique Michaud; Pierre-Etienne Bourban; Eric Jacquelin; Jan-Anders E. Månson
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Paper Abstract

Highly concentrated silica suspensions are well-known for their pronounced shear-thickening behavior beyond a certain shear rate or stress, at which a significant and simultaneous increase of the stiffness and damping properties are observed. In the present work, the integration of shear-thickening fluids (STFs) into composite structures has been investigated with the aim of tuning part stiffness and damping capacity under dynamic deformation. Results from oscillatory rheological measurements on an STF were correlated with results from vibrating beam tests (VBT) on model sandwich structures containing layers of the same STF sandwiched between polyvinyl chloride (PVC) beams. The effect of STF composition was investigated, and finite element analysis (FEA) was used to predict the dynamic behavior of the PVC-STF sandwich structure numerically.

Paper Details

Date Published: 27 April 2007
PDF: 10 pages
Proc. SPIE 6525, Active and Passive Smart Structures and Integrated Systems 2007, 652513 (27 April 2007); doi: 10.1117/12.715833
Show Author Affiliations
Christian Fischer, Ecole Polytechnique Fédérale de Lausanne (Switzerland)
Abdelkrim Bennani, Univ. de Claude Bernard Lyon I/INRETS (France)
Christopher J. G. Plummer, École Polytechnique Fédérale de Lausanne (Switzerland)
Véronique Michaud, École Polytechnique Fédérale de Lausanne (Switzerland)
Pierre-Etienne Bourban, École Polytechnique Fédérale de Lausanne (Switzerland)
Eric Jacquelin, Univ. de Claude Bernard Lyon I/INRETS (France)
Jan-Anders E. Månson, École Polytechnique Fédérale de Lausanne (Switzerland)


Published in SPIE Proceedings Vol. 6525:
Active and Passive Smart Structures and Integrated Systems 2007
Yuji Matsuzaki; Mehdi Ahmadian; Donald J. Leo, Editor(s)

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