DC Field | Value | Language |
---|---|---|
dc.contributor.author | Abbas, Syed Haider | ko |
dc.contributor.author | Lee, Jung-Ryul | ko |
dc.date.accessioned | 2018-09-18T05:52:23Z | - |
dc.date.available | 2018-09-18T05:52:23Z | - |
dc.date.created | 2018-04-02 | - |
dc.date.created | 2018-04-02 | - |
dc.date.created | 2018-04-02 | - |
dc.date.issued | 2018-08 | - |
dc.identifier.citation | SMART STRUCTURES AND SYSTEMS, v.22, no.2, pp.223 - 230 | - |
dc.identifier.issn | 1738-1584 | - |
dc.identifier.uri | http://hdl.handle.net/10203/245417 | - |
dc.description.abstract | This study examines a non-contact laser scanning-based ultrasound system, called an angular scan pulse-echo ultrasonic propagation imager (A-PE-UPI), that uses coincided laser beams for ultrasonic sensing and generation. A laser Doppler vibrometer is used for sensing, while a diode pumped solid state (DPSS) Q-switched laser is used for generation of thermoelastic waves. A high-speed raster scanning of up to 10-kHz is achieved using a galvano-motorized mirror scanner that allows for coincided sensing and for the generation beam to perform two-dimensional scanning without causing any harm to the surface under inspection. This process allows for the visualization of longitudinal wave propagation through-the-thickness. A pulse-echo ultrasonic wave propagation imaging algorithm (PE-UVVPI) is used for on-the-fly damage visualization of the structure. The presented system is very effective for high-speed, localized, non-contact, and non-destructive inspection of aerospace structures. The system is tested on an aluminum honeycomb sandwich with disbonds and a carbon fiber-reinforced plastic (CFRP) honeycomb sandwich with a layer overlap. Inspection is performed at a 10-kHz scanning speed that takes 16 seconds to scan a 100 x 100 mm(2) area with a scan interval of 0.25 mm. Finally, a comparison is presented between angular scanning and a linear-scanning-based pulse-echo UPI system. The results show that the proposed system can successfully visualize defects in the inspected specimens. | - |
dc.language | English | - |
dc.publisher | TECHNO-PRESS | - |
dc.title | High-speed Angular-scan Pulse-echo Ultrasonic Propagation Imager for In situ Non-Destructive Evaluation | - |
dc.type | Article | - |
dc.identifier.wosid | 000441177200012 | - |
dc.identifier.scopusid | 2-s2.0-85052406634 | - |
dc.type.rims | ART | - |
dc.citation.volume | 22 | - |
dc.citation.issue | 2 | - |
dc.citation.beginningpage | 223 | - |
dc.citation.endingpage | 230 | - |
dc.citation.publicationname | SMART STRUCTURES AND SYSTEMS | - |
dc.identifier.doi | 10.12989/sss.2018.22.2.223 | - |
dc.contributor.localauthor | Lee, Jung-Ryul | - |
dc.description.isOpenAccess | N | - |
dc.type.journalArticle | Article; Proceedings Paper | - |
dc.subject.keywordAuthor | pulse echo laser ultrasound | - |
dc.subject.keywordAuthor | laser Doppler vibrometer | - |
dc.subject.keywordAuthor | laser scanning | - |
dc.subject.keywordAuthor | non-destructive evaluation | - |
dc.subject.keywordPlus | COMPOSITE-MATERIALS | - |
dc.subject.keywordPlus | DAMAGE | - |
dc.subject.keywordPlus | TRANSDUCER | - |
dc.subject.keywordPlus | SYSTEM | - |
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