Full metadata record
DC Field | Value | Language |
---|---|---|
dc.contributor.author | 장경영 | - |
dc.date.accessioned | 2016-08-04T02:12:04Z | - |
dc.date.available | 2016-08-04T02:12:04Z | - |
dc.date.issued | 2015-02 | - |
dc.identifier.citation | RESEARCH IN NONDESTRUCTIVE EVALUATION, v. 26, NO 1, Page. 13-22 | en_US |
dc.identifier.issn | 0934-9847 | - |
dc.identifier.issn | 1432-2110 | - |
dc.identifier.uri | http://www.tandfonline.com/doi/abs/10.1080/09349847.2014.934496 | - |
dc.identifier.uri | http://hdl.handle.net/20.500.11754/22403 | - |
dc.description.abstract | A noncontact method to evaluate the acoustic nonlinearity of surface waves in a plastically deformed aluminum alloy is proposed. Line-arrayed laser beams modulated with slit masks were used for the generation of narrowband surface waves. A laser-ultrasonic detector using a two-wave mixing (TWM) approach was also employed to detect the surface waves. The specimens were deformed by a stroke-controlled tensile tester so as to generate various degrees of tensile deformation. The experimental results showed that the acoustic nonlinearity of the laser-generated surface waves increased according to the level of tensile deformation. This tendency was in good agreement with our previous results obtained using a contact piezoelectric (PZT)-transducer as the receiver. These results imply that our noncontact technique is suitable for the evaluation of acoustic nonlinearity and can be applied to practical damage assessment. | en_US |
dc.description.sponsorship | National Research Foundation of Korea (NRF) - Korean Government (MEST) | en_US |
dc.language.iso | en | en_US |
dc.publisher | TAYLOR & FRANCIS INC | en_US |
dc.subject | laser-generated surface wave | en_US |
dc.subject | laser | en_US |
dc.subject | ultrasonic surface wave | en_US |
dc.subject | acoustic nonlinearity | en_US |
dc.subject | two-wave mixing | en_US |
dc.title | Noncontact Evaluation of Acoustic Nonlinearity of a Laser-Generated Surface Wave in a Plastically Deformed Aluminum Alloy | en_US |
dc.type | Article | en_US |
dc.relation.no | 1 | - |
dc.relation.volume | 26 | - |
dc.identifier.doi | 10.1080/09349847.2014.934496 | - |
dc.relation.page | 13-22 | - |
dc.relation.journal | RESEARCH IN NONDESTRUCTIVE EVALUATION | - |
dc.contributor.googleauthor | Choi, Sungho | - |
dc.contributor.googleauthor | Seo, Hogeon | - |
dc.contributor.googleauthor | Jhang, Kyung-Young | - |
dc.relation.code | 2015002635 | - |
dc.sector.campus | S | - |
dc.sector.daehak | COLLEGE OF ENGINEERING[S] | - |
dc.sector.department | DIVISION OF MECHANICAL ENGINEERING | - |
dc.identifier.pid | kyjhang | - |
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