Wavefront modulation and controlling for Lamb waves using surface bonded slice lenses
There is a growing interest in controlling the propagation of Lamb waves to achieve better performance for structural health monitoring and nondestructive evaluation. In this study, we present new methods of controlling Lamb waves using simple slice lenses through wavefront modulation. The lenses ar...
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Veröffentlicht in: | Journal of applied physics 2017-12, Vol.122 (23) |
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description | There is a growing interest in controlling the propagation of Lamb waves to achieve better performance for structural health monitoring and nondestructive evaluation. In this study, we present new methods of controlling Lamb waves using simple slice lenses through wavefront modulation. The lenses are made of metal slices with designed shapes. Once bonded on plates, the lenses modify the effective plate thickness, and therefore change the Lamb wave characteristics such as the wavenumber and phase velocity, providing convenient ways of modulating wavefront and controlling Lamb waves in plates. Numerically and experimentally, we demonstrated that a straight wavefront A0 mode can be focused on the desired focal point using a plano-concave aspherical lens. We also demonstrated that the A0 mode can be steered with different frequency components steered to different directions using a simple prism made of metal slices. The work shows that such simple slice lenses provide easy ways for controlling Lamb waves, and have a great potential for Lamb wave based applications. |
doi_str_mv | 10.1063/1.4999627 |
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In this study, we present new methods of controlling Lamb waves using simple slice lenses through wavefront modulation. The lenses are made of metal slices with designed shapes. Once bonded on plates, the lenses modify the effective plate thickness, and therefore change the Lamb wave characteristics such as the wavenumber and phase velocity, providing convenient ways of modulating wavefront and controlling Lamb waves in plates. Numerically and experimentally, we demonstrated that a straight wavefront A0 mode can be focused on the desired focal point using a plano-concave aspherical lens. We also demonstrated that the A0 mode can be steered with different frequency components steered to different directions using a simple prism made of metal slices. The work shows that such simple slice lenses provide easy ways for controlling Lamb waves, and have a great potential for Lamb wave based applications.</description><identifier>ISSN: 0021-8979</identifier><identifier>EISSN: 1089-7550</identifier><identifier>DOI: 10.1063/1.4999627</identifier><identifier>CODEN: JAPIAU</identifier><language>eng</language><publisher>Melville: American Institute of Physics</publisher><subject>Applied physics ; Control methods ; Lamb waves ; Lenses ; Modulation ; Nondestructive testing ; Phase velocity ; Plates (structural members) ; Structural health monitoring ; Wave propagation ; Wavelengths</subject><ispartof>Journal of applied physics, 2017-12, Vol.122 (23)</ispartof><rights>Author(s)</rights><rights>2017 Author(s). 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In this study, we present new methods of controlling Lamb waves using simple slice lenses through wavefront modulation. The lenses are made of metal slices with designed shapes. Once bonded on plates, the lenses modify the effective plate thickness, and therefore change the Lamb wave characteristics such as the wavenumber and phase velocity, providing convenient ways of modulating wavefront and controlling Lamb waves in plates. Numerically and experimentally, we demonstrated that a straight wavefront A0 mode can be focused on the desired focal point using a plano-concave aspherical lens. We also demonstrated that the A0 mode can be steered with different frequency components steered to different directions using a simple prism made of metal slices. The work shows that such simple slice lenses provide easy ways for controlling Lamb waves, and have a great potential for Lamb wave based applications.</description><subject>Applied physics</subject><subject>Control methods</subject><subject>Lamb waves</subject><subject>Lenses</subject><subject>Modulation</subject><subject>Nondestructive testing</subject><subject>Phase velocity</subject><subject>Plates (structural members)</subject><subject>Structural health monitoring</subject><subject>Wave propagation</subject><subject>Wavelengths</subject><issn>0021-8979</issn><issn>1089-7550</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2017</creationdate><recordtype>article</recordtype><recordid>eNqd0E1LxDAQBuAgCq4fB_9B0JNC10zTpslRFr9gwYuLx5C0E-3SbdakXfHf29oF756GGR5mhpeQC2BzYILfwjxTSom0OCAzYFIlRZ6zQzJjLIVEqkIdk5MY14wBSK5mZPVmduiCbzu68VXfmK72LTVtRcthFnzT1O07dT7QpdlY-jXoSPs4DmMfnCmRWt9WWNHY1EPTYBsxnpEjZ5qI5_t6SlYP96-Lp2T58vi8uFsmJZeqSzgTmGcIDFJhbVEK40zFAFGqHLPMprnNpBVC8kI6LpGljiPw1KVOgM0EPyWX014fu1rHsu6w_Bgeb7HsNGTAc5EP6GpC2-A_e4ydXvs-tMNfOgUQDAoFo7qeVBl8jAGd3oZ6Y8K3BqbHaDXofbSDvZnsePE3sf_hnQ9_UG8rx38AXJeGvw</recordid><startdate>20171221</startdate><enddate>20171221</enddate><creator>Tian, Zhenhua</creator><creator>Yu, Lingyu</creator><general>American Institute of Physics</general><scope>AAYXX</scope><scope>CITATION</scope><scope>8FD</scope><scope>H8D</scope><scope>L7M</scope><scope>OTOTI</scope><orcidid>https://orcid.org/0000-0003-4790-5352</orcidid><orcidid>https://orcid.org/0000000347905352</orcidid></search><sort><creationdate>20171221</creationdate><title>Wavefront modulation and controlling for Lamb waves using surface bonded slice lenses</title><author>Tian, Zhenhua ; Yu, Lingyu</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c389t-306e54e10126bb7c6afad01ee895e44b25b48b668378f38e02f3e132f2f61b463</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2017</creationdate><topic>Applied physics</topic><topic>Control methods</topic><topic>Lamb waves</topic><topic>Lenses</topic><topic>Modulation</topic><topic>Nondestructive testing</topic><topic>Phase velocity</topic><topic>Plates (structural members)</topic><topic>Structural health monitoring</topic><topic>Wave propagation</topic><topic>Wavelengths</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Tian, Zhenhua</creatorcontrib><creatorcontrib>Yu, Lingyu</creatorcontrib><collection>CrossRef</collection><collection>Technology Research Database</collection><collection>Aerospace Database</collection><collection>Advanced Technologies Database with Aerospace</collection><collection>OSTI.GOV</collection><jtitle>Journal of applied physics</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Tian, Zhenhua</au><au>Yu, Lingyu</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Wavefront modulation and controlling for Lamb waves using surface bonded slice lenses</atitle><jtitle>Journal of applied physics</jtitle><date>2017-12-21</date><risdate>2017</risdate><volume>122</volume><issue>23</issue><issn>0021-8979</issn><eissn>1089-7550</eissn><coden>JAPIAU</coden><abstract>There is a growing interest in controlling the propagation of Lamb waves to achieve better performance for structural health monitoring and nondestructive evaluation. In this study, we present new methods of controlling Lamb waves using simple slice lenses through wavefront modulation. The lenses are made of metal slices with designed shapes. Once bonded on plates, the lenses modify the effective plate thickness, and therefore change the Lamb wave characteristics such as the wavenumber and phase velocity, providing convenient ways of modulating wavefront and controlling Lamb waves in plates. Numerically and experimentally, we demonstrated that a straight wavefront A0 mode can be focused on the desired focal point using a plano-concave aspherical lens. We also demonstrated that the A0 mode can be steered with different frequency components steered to different directions using a simple prism made of metal slices. The work shows that such simple slice lenses provide easy ways for controlling Lamb waves, and have a great potential for Lamb wave based applications.</abstract><cop>Melville</cop><pub>American Institute of Physics</pub><doi>10.1063/1.4999627</doi><tpages>9</tpages><orcidid>https://orcid.org/0000-0003-4790-5352</orcidid><orcidid>https://orcid.org/0000000347905352</orcidid><oa>free_for_read</oa></addata></record> |
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subjects | Applied physics Control methods Lamb waves Lenses Modulation Nondestructive testing Phase velocity Plates (structural members) Structural health monitoring Wave propagation Wavelengths |
title | Wavefront modulation and controlling for Lamb waves using surface bonded slice lenses |
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