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...
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| Format: | Article |
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MDPI AG
2018-07-01
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| Series: | Sensors |
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| Online Access: | http://www.mdpi.com/1424-8220/18/8/2451 |
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| author | Xiaoqiang Sun Xiangyan Ding Feilong Li Shijie Zhou Yaolu Liu Ning Hu Zhongqing Su Youxuan Zhao Jun Zhang Mingxi Deng |
| author_facet | Xiaoqiang Sun Xiangyan Ding Feilong Li Shijie Zhou Yaolu Liu Ning Hu Zhongqing Su Youxuan Zhao Jun Zhang Mingxi Deng |
| author_sort | Xiaoqiang Sun |
| collection | DOAJ |
| 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 S0 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. |
| first_indexed | 2024-04-14T02:30:07Z |
| format | Article |
| id | doaj.art-8ab27dabb8d7448c8d71caaecbe13707 |
| institution | Directory Open Access Journal |
| issn | 1424-8220 |
| language | English |
| last_indexed | 2024-04-14T02:30:07Z |
| publishDate | 2018-07-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Sensors |
| spelling | doaj.art-8ab27dabb8d7448c8d71caaecbe137072022-12-22T02:17:42ZengMDPI AGSensors1424-82202018-07-01188245110.3390/s18082451s18082451Interaction of Lamb Wave Modes with Weak Material Nonlinearity: Generation of Symmetric Zero-Frequency ModeXiaoqiang Sun0Xiangyan Ding1Feilong Li2Shijie Zhou3Yaolu Liu4Ning Hu5Zhongqing Su6Youxuan Zhao7Jun Zhang8Mingxi Deng9College of Aerospace Engineering, Chongqing University, Chongqing 400044, ChinaCollege of Aerospace Engineering, Chongqing University, Chongqing 400044, ChinaCollege of Aerospace Engineering, Chongqing University, Chongqing 400044, ChinaCollege of Aerospace Engineering, Chongqing University, Chongqing 400044, ChinaCollege of Aerospace Engineering, Chongqing University, Chongqing 400044, ChinaCollege of Aerospace Engineering, Chongqing University, Chongqing 400044, ChinaDepartment of Mechanical Engineering, The Hong Kong Polytechnic University, Hong Kong SAR, ChinaCollege of Aerospace Engineering, Chongqing University, Chongqing 400044, ChinaCollege of Aerospace Engineering, Chongqing University, Chongqing 400044, ChinaCollege of Aerospace Engineering, Chongqing University, Chongqing 400044, ChinaThe 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 S0 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.http://www.mdpi.com/1424-8220/18/8/2451structural health monitoringnonlinear Lamb waveszero-frequency mode |
| spellingShingle | Xiaoqiang Sun Xiangyan Ding Feilong Li Shijie Zhou Yaolu Liu Ning Hu Zhongqing Su Youxuan Zhao Jun Zhang Mingxi Deng Interaction of Lamb Wave Modes with Weak Material Nonlinearity: Generation of Symmetric Zero-Frequency Mode Sensors structural health monitoring nonlinear Lamb waves 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 | structural health monitoring nonlinear Lamb waves zero-frequency mode |
| url | http://www.mdpi.com/1424-8220/18/8/2451 |
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