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11 May 2017 Tunable band gaps in a compressible dielectric elastomer thin cylinder with periodically applied voltages (Conference Presentation)
Weiqiu Chen
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Proceedings Volume 10170, Health Monitoring of Structural and Biological Systems 2017; 1017026 (2017) https://doi.org/10.1117/12.2260866
Event: SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring, 2017, Portland, Oregon, United States
Abstract
We propose a compressible soft active periodic structure to study the real time control ability or tunability of longitudinal elastic waves in it in terms of pre-deformation induced by a mechanical or electric biasing field. The simple and generalized nonlinear superelastic material model for compressible soft active materials is employed to theoretically investigate the mechanically or electrically tunable properties of band structures. The effective acoustic impedance difference is introduced which seems to be the dominating parameter in tuning the acoustic band gaps.
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Weiqiu Chen "Tunable band gaps in a compressible dielectric elastomer thin cylinder with periodically applied voltages (Conference Presentation)", Proc. SPIE 10170, Health Monitoring of Structural and Biological Systems 2017, 1017026 (11 May 2017); https://doi.org/10.1117/12.2260866
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KEYWORDS
Acoustics
Dielectrics
Current controlled current source
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