{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,21]],"date-time":"2026-09-21T10:30:44Z","timestamp":1789986644928,"version":"4.0.1"},"reference-count":24,"publisher":"AIP Publishing","issue":"5","funder":[{"DOI":"10.13039\/501100003725","name":"National Research Foundation of Korea","doi-asserted-by":"crossref","award":["2011-0030065"],"award-info":[{"award-number":["2011-0030065"]}],"id":[{"id":"10.13039\/501100003725","id-type":"DOI","asserted-by":"crossref"}]},{"DOI":"10.13039\/501100003725","name":"National Research Foundation of Korea","doi-asserted-by":"publisher","award":["15-CM-MA-12"],"award-info":[{"award-number":["15-CM-MA-12"]}],"id":[{"id":"10.13039\/501100003725","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["pubs.aip.org"],"crossmark-restriction":true},"short-container-title":[],"published-print":{"date-parts":[[2017,5,1]]},"abstract":"<jats:p>Nondestructive evaluation using shearography requires a way to stress the inspection target. This technique is able to directly measure the displacement gradient distribution on the object surface. Shearography visualizes the internal structural damages as the anomalous pattern in the shearograpic fringe pattern. A piezoelectric (PZT) excitation system is able to generate loadings in the vibrational, acoustic, and ultrasonic regimes. In this paper, we propose a PZT-excited stroboscopic shearography. The PZT excitation could generate vibrational loading, a stationary wavefield, and a nonstationary propagation wave to fulfill the external loading requirement of shearography. The sweeping of the PZT excitation frequency, the formation of a standing wave, and a small shearing to suppress the incident wave were powerful controllable tools to detect the defects. The sweeping of the PZT excitation frequency enabled us to determine one of the defect-sensitive frequencies almost in real time. In addition, because the defect sensitive frequencies always existed in wide and plural ranges, the risk of the defect being overlooked by the inspector could be alleviated. The results of evaluation using stroboscopic shearography showed that an artificial 20 mm-diameter defect could be visualized at the excitation frequencies of 5\u20138 kHz range and 12.5\u201315.5 kHz range. This technique provided full field reliable and repeatable inspection results. Additionally, the proposed method overcame the important drawback of the time-averaged shearography, being required to identify the resonance vibration frequency sensitive to the defect.<\/jats:p>","DOI":"10.1063\/1.4981938","type":"journal-article","created":{"date-parts":[[2017,5,1]],"date-time":"2017-05-01T13:53:02Z","timestamp":1493646782000},"update-policy":"https:\/\/doi.org\/10.1063\/aip-crossmark-policy-page","source":"Crossref","is-referenced-by-count":18,"title":["Development of PZT-excited stroboscopic shearography for full-field nondestructive evaluation"],"prefix":"10.1063","volume":"88","author":[{"given":"Hamidreza","family":"Asemani","sequence":"first","affiliation":[{"name":"Korea Advanced Institute of Science and Technology (KAIST) 1 Opto-Electro-Structural Laboratory, Department of Aerospace Engineering, , Daejeon, South Korea"},{"name":"University of Tehran 2 Intelligence Based Experimental Mechanics Center, School of Mechanical Engineering, College of Engineering, , Tehran, Iran"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-5786-9079","authenticated-orcid":false,"given":"Jinwoo","family":"Park","sequence":"additional","affiliation":[{"name":"Korea Advanced Institute of Science and Technology (KAIST) 1 Opto-Electro-Structural Laboratory, Department of Aerospace Engineering, , Daejeon, South Korea"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jung-Ryul","family":"Lee","sequence":"additional","affiliation":[{"name":"Korea Advanced Institute of Science and Technology (KAIST) 1 Opto-Electro-Structural Laboratory, Department of Aerospace Engineering, , Daejeon, South Korea"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Nasser","family":"Soltani","sequence":"additional","affiliation":[{"name":"University of Tehran 2 Intelligence Based Experimental Mechanics Center, School of Mechanical Engineering, College of Engineering, , Tehran, Iran"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"317","published-online":{"date-parts":[[2017,5,1]]},"reference":[{"key":"2023080309485779800_c1","doi-asserted-by":"publisher","first-page":"169","DOI":"10.1117\/12.953850","article-title":"Speckle-shearing interferometric camera\u2013A tool for measurement of derivatives of surface-displacement","volume":"41","year":"1973","journal-title":"Proc. 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