Wrinkling is a common phenomenon in natural and engineering film structures. The wrinkles influence the geometry and dynamic response of these structures. In this work, we investigate the wrinkling of a stretched thin film containing engineered microstructures and its derived functionality on controlling the propagation of bending waves. The underlying mechanism is revealed and the effect of wrinkles on the bandgap of bending waves is systematically evaluated via numerical simulations based on the Bloch wave theory. We show that wrinkles with a customized wavelength can be triggered in the microstructured film due to the mismatched deformation in the film. The bandgap of the wrinkled film can be finely tuned via applied stretching, resulting in the controllable propagation of bending waves in thin films. Our work provides fundamental insights into wave propagation in wrinkled films and potential applications for dynamic control of the wave propagation in engineering film structures.
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June 2019
Research-Article
Controllable Propagation of Bending Waves in Wrinkled Films
Xia Ding,
Xia Ding
School of Aerospace Engineering,
Beijing 100081,
Beijing Institute of Technology
,Beijing 100081,
China
;
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Yuchen Zhao,
Yuchen Zhao
School of Aerospace Engineering,
Beijing 100081,
e-mail: yc.zhao@bit.edu.cn
Beijing Institute of Technology
,Beijing 100081,
China
e-mail: yc.zhao@bit.edu.cn
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Dong Yan,
Dong Yan
School of Aerospace Engineering,
Beijing 100081,
e-mail: yandong@bit.edu.cn
Beijing Institute of Technology
,Beijing 100081,
China
e-mail: yandong@bit.edu.cn
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Kai Zhang
Kai Zhang
1
School of Aerospace Engineering,
Beijing 100081,
e-mail: zhangkai@bit.edu.cn
Beijing Institute of Technology
,Beijing 100081,
China
e-mail: zhangkai@bit.edu.cn
1Corresponding author.
Search for other works by this author on:
Xia Ding
School of Aerospace Engineering,
Beijing 100081,
Beijing Institute of Technology
,Beijing 100081,
China
;
Yuchen Zhao
School of Aerospace Engineering,
Beijing 100081,
e-mail: yc.zhao@bit.edu.cn
Beijing Institute of Technology
,Beijing 100081,
China
e-mail: yc.zhao@bit.edu.cn
Dong Yan
School of Aerospace Engineering,
Beijing 100081,
e-mail: yandong@bit.edu.cn
Beijing Institute of Technology
,Beijing 100081,
China
e-mail: yandong@bit.edu.cn
Kai Zhang
School of Aerospace Engineering,
Beijing 100081,
e-mail: zhangkai@bit.edu.cn
Beijing Institute of Technology
,Beijing 100081,
China
e-mail: zhangkai@bit.edu.cn
1Corresponding author.
Contributed by the Applied Mechanics Division of ASME for publication in the Journal of Applied Mechanics. Manuscript received December 7, 2018; final manuscript received March 3, 2019; published online March 16, 2019. Assoc. Editor: Pedro Reis.
J. Appl. Mech. Jun 2019, 86(6): 061005 (8 pages)
Published Online: March 16, 2019
Article history
Received:
December 7, 2018
Revision Received:
March 3, 2019
Accepted:
March 4, 2019
Citation
Ding, X., Zhao, Y., Yan, D., and Zhang, K. (March 16, 2019). "Controllable Propagation of Bending Waves in Wrinkled Films." ASME. J. Appl. Mech. June 2019; 86(6): 061005. https://doi.org/10.1115/1.4043073
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