ACOUSTOELASTIC LAMB WAVE PROPAGATION IN A HOMOGENEOUS, ISOTROPIC ALUMINUM PLATE
The effect of stress on Lamb wave propagation is relevant to both nondestructive evaluation and structural health monitoring because of changes in received signals due to both the associated strain and the acoustoelastic effect. A homogeneous plate that is initially isotropic becomes anisotropic und...
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| creator | Gandhi, Navneet Michaels, Jennifer E Lee, Sang Jun |
| description | The effect of stress on Lamb wave propagation is relevant to both nondestructive evaluation and structural health monitoring because of changes in received signals due to both the associated strain and the acoustoelastic effect. A homogeneous plate that is initially isotropic becomes anisotropic under uniaxial stress, and dispersion of propagating waves becomes directionally dependent. The problem is similar to Lamb wave propagation in an anisotropic plate, except the fourth order tensor in the resulting wave equation does not have the same symmetry as that for the unstressed anisotropic plate, and the constitutive equation relating incremental stress to incremental strain is more complicated. Here we consider the theory of acoustoelastic Lamb wave propagation and show how dispersion curves shift anisotropically for an aluminum plate under uniaxial tension. Theoretical predictions of changes in phase velocity as a function of propagation direction are compared to experimental results for a single wave mode. |
| doi_str_mv | 10.1063/1.3591852 |
| format | Conference Proceeding |
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A homogeneous plate that is initially isotropic becomes anisotropic under uniaxial stress, and dispersion of propagating waves becomes directionally dependent. The problem is similar to Lamb wave propagation in an anisotropic plate, except the fourth order tensor in the resulting wave equation does not have the same symmetry as that for the unstressed anisotropic plate, and the constitutive equation relating incremental stress to incremental strain is more complicated. Here we consider the theory of acoustoelastic Lamb wave propagation and show how dispersion curves shift anisotropically for an aluminum plate under uniaxial tension. Theoretical predictions of changes in phase velocity as a function of propagation direction are compared to experimental results for a single wave mode.</description><identifier>ISSN: 0094-243X</identifier><identifier>ISBN: 9780735408883</identifier><identifier>ISBN: 0735408882</identifier><identifier>EISSN: 1551-7616</identifier><identifier>DOI: 10.1063/1.3591852</identifier><language>eng</language><publisher>United States</publisher><subject>ACOUSTIC TESTING ; Acoustoelasticity ; ALUMINIUM ; Aluminum ; ANISOTROPY ; CHEMICAL ANALYSIS ; DIFFERENTIAL EQUATIONS ; DISPERSIONS ; ELASTICITY ; ELEMENTS ; ENGINEERING ; EQUATIONS ; FORECASTING ; LAMB SHIFT ; Lamb waves ; MATERIALS TESTING ; MECHANICAL PROPERTIES ; METALS ; NONDESTRUCTIVE ANALYSIS ; NONDESTRUCTIVE TESTING ; PARTIAL DIFFERENTIAL EQUATIONS ; PHASE VELOCITY ; PLATES ; SIMULATION ; SPECTRAL SHIFT ; Strain ; STRAINS ; STRESSES ; SYMMETRY ; TESTING ; VELOCITY ; WAVE EQUATIONS ; WAVE PROPAGATION ; WAVEGUIDES</subject><ispartof>AIP conference proceedings, 2011, Vol.1335 (1)</ispartof><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c256t-8047f49878a2edb5cc84072ae42802a06119e6854a9701b9c81229df9772b9e23</citedby></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>230,314,780,784,885,27924,27925</link.rule.ids><backlink>$$Uhttps://www.osti.gov/biblio/21511628$$D View this record in Osti.gov$$Hfree_for_read</backlink></links><search><creatorcontrib>Gandhi, Navneet</creatorcontrib><creatorcontrib>Michaels, Jennifer E</creatorcontrib><creatorcontrib>Lee, Sang Jun</creatorcontrib><title>ACOUSTOELASTIC LAMB WAVE PROPAGATION IN A HOMOGENEOUS, ISOTROPIC ALUMINUM PLATE</title><title>AIP conference proceedings</title><description>The effect of stress on Lamb wave propagation is relevant to both nondestructive evaluation and structural health monitoring because of changes in received signals due to both the associated strain and the acoustoelastic effect. A homogeneous plate that is initially isotropic becomes anisotropic under uniaxial stress, and dispersion of propagating waves becomes directionally dependent. The problem is similar to Lamb wave propagation in an anisotropic plate, except the fourth order tensor in the resulting wave equation does not have the same symmetry as that for the unstressed anisotropic plate, and the constitutive equation relating incremental stress to incremental strain is more complicated. Here we consider the theory of acoustoelastic Lamb wave propagation and show how dispersion curves shift anisotropically for an aluminum plate under uniaxial tension. Theoretical predictions of changes in phase velocity as a function of propagation direction are compared to experimental results for a single wave mode.</description><subject>ACOUSTIC TESTING</subject><subject>Acoustoelasticity</subject><subject>ALUMINIUM</subject><subject>Aluminum</subject><subject>ANISOTROPY</subject><subject>CHEMICAL ANALYSIS</subject><subject>DIFFERENTIAL EQUATIONS</subject><subject>DISPERSIONS</subject><subject>ELASTICITY</subject><subject>ELEMENTS</subject><subject>ENGINEERING</subject><subject>EQUATIONS</subject><subject>FORECASTING</subject><subject>LAMB SHIFT</subject><subject>Lamb waves</subject><subject>MATERIALS TESTING</subject><subject>MECHANICAL PROPERTIES</subject><subject>METALS</subject><subject>NONDESTRUCTIVE ANALYSIS</subject><subject>NONDESTRUCTIVE TESTING</subject><subject>PARTIAL DIFFERENTIAL EQUATIONS</subject><subject>PHASE VELOCITY</subject><subject>PLATES</subject><subject>SIMULATION</subject><subject>SPECTRAL SHIFT</subject><subject>Strain</subject><subject>STRAINS</subject><subject>STRESSES</subject><subject>SYMMETRY</subject><subject>TESTING</subject><subject>VELOCITY</subject><subject>WAVE EQUATIONS</subject><subject>WAVE PROPAGATION</subject><subject>WAVEGUIDES</subject><issn>0094-243X</issn><issn>1551-7616</issn><isbn>9780735408883</isbn><isbn>0735408882</isbn><fulltext>true</fulltext><rsrctype>conference_proceeding</rsrctype><creationdate>2011</creationdate><recordtype>conference_proceeding</recordtype><recordid>eNotzDtPwzAUBWCLh0RVOvAPLLEwkOLrt0cThTZSElc0AbYodV1RVBrA6f8nEtzhnOU7F6EbIHMgkj3AnAkDWtAzNAEhIFES5DmaGaWJYoITrTW7QBNCDE8oZ29XaBbjBxnPSDPGBDmbumZdu6yw6zpPcWHLR_xqXzK8enYru7B17iqcV9jipSvdIquy0d_jfO3qEYwLWzRlXjUlXhW2zq7R5a47xDD77ylqnrI6XSaFW-SpLRJPhRwSTbjacaOV7mjYboT3mhNFu8CpJrQjEsAEqQXvjCKwMV4DpWa7M0rRjQmUTdHt398-Dvs2-v0Q_Lvvj8fgh5aCAJBUj-ruT3399N-nEIf2cx99OBy6Y-hPsQWpgFNBJGW_RyJXsQ</recordid><startdate>20110101</startdate><enddate>20110101</enddate><creator>Gandhi, Navneet</creator><creator>Michaels, Jennifer E</creator><creator>Lee, Sang Jun</creator><scope>7QF</scope><scope>7U5</scope><scope>8FD</scope><scope>H8D</scope><scope>JG9</scope><scope>L7M</scope><scope>OTOTI</scope></search><sort><creationdate>20110101</creationdate><title>ACOUSTOELASTIC LAMB WAVE PROPAGATION IN A HOMOGENEOUS, ISOTROPIC ALUMINUM PLATE</title><author>Gandhi, Navneet ; Michaels, Jennifer E ; Lee, Sang Jun</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c256t-8047f49878a2edb5cc84072ae42802a06119e6854a9701b9c81229df9772b9e23</frbrgroupid><rsrctype>conference_proceedings</rsrctype><prefilter>conference_proceedings</prefilter><language>eng</language><creationdate>2011</creationdate><topic>ACOUSTIC TESTING</topic><topic>Acoustoelasticity</topic><topic>ALUMINIUM</topic><topic>Aluminum</topic><topic>ANISOTROPY</topic><topic>CHEMICAL ANALYSIS</topic><topic>DIFFERENTIAL EQUATIONS</topic><topic>DISPERSIONS</topic><topic>ELASTICITY</topic><topic>ELEMENTS</topic><topic>ENGINEERING</topic><topic>EQUATIONS</topic><topic>FORECASTING</topic><topic>LAMB SHIFT</topic><topic>Lamb waves</topic><topic>MATERIALS TESTING</topic><topic>MECHANICAL PROPERTIES</topic><topic>METALS</topic><topic>NONDESTRUCTIVE ANALYSIS</topic><topic>NONDESTRUCTIVE TESTING</topic><topic>PARTIAL DIFFERENTIAL EQUATIONS</topic><topic>PHASE VELOCITY</topic><topic>PLATES</topic><topic>SIMULATION</topic><topic>SPECTRAL SHIFT</topic><topic>Strain</topic><topic>STRAINS</topic><topic>STRESSES</topic><topic>SYMMETRY</topic><topic>TESTING</topic><topic>VELOCITY</topic><topic>WAVE EQUATIONS</topic><topic>WAVE PROPAGATION</topic><topic>WAVEGUIDES</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Gandhi, Navneet</creatorcontrib><creatorcontrib>Michaels, Jennifer E</creatorcontrib><creatorcontrib>Lee, Sang Jun</creatorcontrib><collection>Aluminium Industry Abstracts</collection><collection>Solid State and Superconductivity Abstracts</collection><collection>Technology Research Database</collection><collection>Aerospace Database</collection><collection>Materials Research Database</collection><collection>Advanced Technologies Database with Aerospace</collection><collection>OSTI.GOV</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Gandhi, Navneet</au><au>Michaels, Jennifer E</au><au>Lee, Sang Jun</au><format>book</format><genre>proceeding</genre><ristype>CONF</ristype><atitle>ACOUSTOELASTIC LAMB WAVE PROPAGATION IN A HOMOGENEOUS, ISOTROPIC ALUMINUM PLATE</atitle><btitle>AIP conference proceedings</btitle><date>2011-01-01</date><risdate>2011</risdate><volume>1335</volume><issue>1</issue><issn>0094-243X</issn><eissn>1551-7616</eissn><isbn>9780735408883</isbn><isbn>0735408882</isbn><abstract>The effect of stress on Lamb wave propagation is relevant to both nondestructive evaluation and structural health monitoring because of changes in received signals due to both the associated strain and the acoustoelastic effect. A homogeneous plate that is initially isotropic becomes anisotropic under uniaxial stress, and dispersion of propagating waves becomes directionally dependent. The problem is similar to Lamb wave propagation in an anisotropic plate, except the fourth order tensor in the resulting wave equation does not have the same symmetry as that for the unstressed anisotropic plate, and the constitutive equation relating incremental stress to incremental strain is more complicated. Here we consider the theory of acoustoelastic Lamb wave propagation and show how dispersion curves shift anisotropically for an aluminum plate under uniaxial tension. Theoretical predictions of changes in phase velocity as a function of propagation direction are compared to experimental results for a single wave mode.</abstract><cop>United States</cop><doi>10.1063/1.3591852</doi></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 0094-243X |
| ispartof | AIP conference proceedings, 2011, Vol.1335 (1) |
| issn | 0094-243X 1551-7616 |
| language | eng |
| recordid | cdi_osti_scitechconnect_21511628 |
| source | AIP Journals Complete |
| subjects | ACOUSTIC TESTING Acoustoelasticity ALUMINIUM Aluminum ANISOTROPY CHEMICAL ANALYSIS DIFFERENTIAL EQUATIONS DISPERSIONS ELASTICITY ELEMENTS ENGINEERING EQUATIONS FORECASTING LAMB SHIFT Lamb waves MATERIALS TESTING MECHANICAL PROPERTIES METALS NONDESTRUCTIVE ANALYSIS NONDESTRUCTIVE TESTING PARTIAL DIFFERENTIAL EQUATIONS PHASE VELOCITY PLATES SIMULATION SPECTRAL SHIFT Strain STRAINS STRESSES SYMMETRY TESTING VELOCITY WAVE EQUATIONS WAVE PROPAGATION WAVEGUIDES |
| title | ACOUSTOELASTIC LAMB WAVE PROPAGATION IN A HOMOGENEOUS, ISOTROPIC ALUMINUM PLATE |
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