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Title: Wavefront modulation and controlling for Lamb waves using surface bonded slice lenses

Authors:
ORCiD logo [1];  [2]
  1. Department of Mechanical Engineering and Material Science, Duke University, Durham, North Carolina 27708, USA
  2. Department of Mechanical Engineering, University of South Carolina, Columbia, South Carolina 29208, USA
Publication Date:
Sponsoring Org.:
USDOE
OSTI Identifier:
1413565
Grant/Contract Number:
NE 0008400
Resource Type:
Journal Article: Publisher's Accepted Manuscript
Journal Name:
Journal of Applied Physics
Additional Journal Information:
Journal Volume: 122; Journal Issue: 23; Related Information: CHORUS Timestamp: 2017-12-15 10:53:28; Journal ID: ISSN 0021-8979
Publisher:
American Institute of Physics
Country of Publication:
United States
Language:
English

Citation Formats

Tian, Zhenhua, and Yu, Lingyu. Wavefront modulation and controlling for Lamb waves using surface bonded slice lenses. United States: N. p., 2017. Web. doi:10.1063/1.4999627.
Tian, Zhenhua, & Yu, Lingyu. Wavefront modulation and controlling for Lamb waves using surface bonded slice lenses. United States. doi:10.1063/1.4999627.
Tian, Zhenhua, and Yu, Lingyu. 2017. "Wavefront modulation and controlling for Lamb waves using surface bonded slice lenses". United States. doi:10.1063/1.4999627.
@article{osti_1413565,
title = {Wavefront modulation and controlling for Lamb waves using surface bonded slice lenses},
author = {Tian, Zhenhua and Yu, Lingyu},
abstractNote = {},
doi = {10.1063/1.4999627},
journal = {Journal of Applied Physics},
number = 23,
volume = 122,
place = {United States},
year = 2017,
month =
}

Journal Article:
Free Publicly Available Full Text
This content will become publicly available on December 15, 2018
Publisher's Accepted Manuscript

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  • Anisotropic stiffness properties of sheet materials can be determined by measuring the propagation of Lamb waves in different directions, but this typically requires multiple positioning of a suitable transducer at several points or scanning over the area of the sample plate. A laser imaging approach is presented that utilizes the adaptive property of photorefractive materials to produce a real-time measurement of the antisymmetric Lamb traveling wave displacement and phase in all planar directions simultaneously without scanning. Continuous excitation and lock-in methodology is employed, enabling the data to be recorded and displayed by a video camera. Analysis of the image producesmore » a direct quantitative determination of the phase velocity in all directions showing plate stiffness anisotropy in the plane. The method is applicable to materials that scatter light diffusely and provides quantitative imaging of the dynamic surface motion exhibited by traveling elastic waves. A description is given of this imaging process and, for the first time, its ability to perform lock-in measurement of elastic wave displacement amplitude and phase. {copyright} {ital 1999 Acoustical Society of America.}« less