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Interaction of Lamb Wave Modes with Weak Material Nonlinearity: Generation of Symmetric Zero-Frequency Mode
The symmetric zero-frequency mode induced by weak material nonlinearity during Lamb wave propagation is explored for the first time. We theoretically confirm that, unlike the second harmonic, phase-velocity matching is not required to generate the zero-frequency mode and its signal is stronger than...
Autores principales: | , , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2018
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6111378/ https://www.ncbi.nlm.nih.gov/pubmed/30060573 http://dx.doi.org/10.3390/s18082451 |
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author | Sun, Xiaoqiang Ding, Xiangyan Li, Feilong Zhou, Shijie Liu, Yaolu Hu, Ning Su, Zhongqing Zhao, Youxuan Zhang, Jun Deng, Mingxi |
author_facet | Sun, Xiaoqiang Ding, Xiangyan Li, Feilong Zhou, Shijie Liu, Yaolu Hu, Ning Su, Zhongqing Zhao, Youxuan Zhang, Jun Deng, Mingxi |
author_sort | Sun, Xiaoqiang |
collection | PubMed |
description | The symmetric zero-frequency mode induced by weak material nonlinearity during Lamb wave propagation is explored for the first time. We theoretically confirm that, unlike the second harmonic, phase-velocity matching is not required to generate the zero-frequency mode and its signal is stronger than those of the nonlinear harmonics conventionally used, for example, the second harmonic. Experimental and numerical verifications of this theoretical analysis are conducted for the primary S(0) mode wave propagating in an aluminum plate. The existence of a symmetric zero-frequency mode is of great significance, probably triggering a revolutionary progress in the field of non-destructive evaluation and structural health monitoring of the early-stage material nonlinearity based on the ultrasonic Lamb waves. |
format | Online Article Text |
id | pubmed-6111378 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2018 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-61113782018-08-30 Interaction of Lamb Wave Modes with Weak Material Nonlinearity: Generation of Symmetric Zero-Frequency Mode Sun, Xiaoqiang Ding, Xiangyan Li, Feilong Zhou, Shijie Liu, Yaolu Hu, Ning Su, Zhongqing Zhao, Youxuan Zhang, Jun Deng, Mingxi Sensors (Basel) Article The symmetric zero-frequency mode induced by weak material nonlinearity during Lamb wave propagation is explored for the first time. We theoretically confirm that, unlike the second harmonic, phase-velocity matching is not required to generate the zero-frequency mode and its signal is stronger than those of the nonlinear harmonics conventionally used, for example, the second harmonic. Experimental and numerical verifications of this theoretical analysis are conducted for the primary S(0) mode wave propagating in an aluminum plate. The existence of a symmetric zero-frequency mode is of great significance, probably triggering a revolutionary progress in the field of non-destructive evaluation and structural health monitoring of the early-stage material nonlinearity based on the ultrasonic Lamb waves. MDPI 2018-07-28 /pmc/articles/PMC6111378/ /pubmed/30060573 http://dx.doi.org/10.3390/s18082451 Text en © 2018 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article Sun, Xiaoqiang Ding, Xiangyan Li, Feilong Zhou, Shijie Liu, Yaolu Hu, Ning Su, Zhongqing Zhao, Youxuan Zhang, Jun Deng, Mingxi Interaction of Lamb Wave Modes with Weak Material Nonlinearity: Generation of Symmetric Zero-Frequency Mode |
title | Interaction of Lamb Wave Modes with Weak Material Nonlinearity: Generation of Symmetric Zero-Frequency Mode |
title_full | Interaction of Lamb Wave Modes with Weak Material Nonlinearity: Generation of Symmetric Zero-Frequency Mode |
title_fullStr | Interaction of Lamb Wave Modes with Weak Material Nonlinearity: Generation of Symmetric Zero-Frequency Mode |
title_full_unstemmed | Interaction of Lamb Wave Modes with Weak Material Nonlinearity: Generation of Symmetric Zero-Frequency Mode |
title_short | Interaction of Lamb Wave Modes with Weak Material Nonlinearity: Generation of Symmetric Zero-Frequency Mode |
title_sort | interaction of lamb wave modes with weak material nonlinearity: generation of symmetric zero-frequency mode |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6111378/ https://www.ncbi.nlm.nih.gov/pubmed/30060573 http://dx.doi.org/10.3390/s18082451 |
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