{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,11,23]],"date-time":"2025-11-23T15:25:03Z","timestamp":1763911503575,"version":"build-2065373602"},"reference-count":21,"publisher":"MDPI AG","issue":"8","license":[{"start":{"date-parts":[[2019,4,25]],"date-time":"2019-04-25T00:00:00Z","timestamp":1556150400000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100001809","name":"National Natural Science Foundation of China","doi-asserted-by":"publisher","award":["61501418"],"award-info":[{"award-number":["61501418"]}],"id":[{"id":"10.13039\/501100001809","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100014219","name":"National Science Fund for Distinguished Young Scholars","doi-asserted-by":"publisher","award":["51625902"],"award-info":[{"award-number":["51625902"]}],"id":[{"id":"10.13039\/501100014219","id-type":"DOI","asserted-by":"publisher"}]},{"name":"Qingdao Source Innovation Program","award":["18-2-2-69-jch"],"award-info":[{"award-number":["18-2-2-69-jch"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Sensors"],"abstract":"<jats:p>The delay-and-sum imaging algorithm is a promising crack localization approach for crack detection and monitoring of key structural regions. Most studies successfully offer a hole-like damage position. However, cracks are more common than hole-like damages in a structure. To solve this issue, this paper presents a crack localization approach, based on diffraction wave theory, which is capable of imaging crack endpoints. The guided wave propagated to the crack endpoints and transformed into a diffraction wave. A line sensor array was used to record the diffraction waveform. Then, dispersion compensation was applied to shorten the dispersive wave packets and separate the overlapping wave packets. Subsequently, half-wave compensation was executed to improve the localization accuracy. Finally, the effectiveness of this high-resolution crack localization method was validated by an experimental example.<\/jats:p>","DOI":"10.3390\/s19081951","type":"journal-article","created":{"date-parts":[[2019,4,25]],"date-time":"2019-04-25T10:44:06Z","timestamp":1556189046000},"page":"1951","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":13,"title":["High-Resolution Crack Localization Approach Based on Diffraction Wave"],"prefix":"10.3390","volume":"19","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-0377-7670","authenticated-orcid":false,"given":"Weilei","family":"Mu","sequence":"first","affiliation":[{"name":"Shandong Provincial Key Laboratory of Ocean Engineering, Ocean University of China, Qingdao 266100, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Jiangang","family":"Sun","sequence":"additional","affiliation":[{"name":"Shandong Provincial Key Laboratory of Ocean Engineering, Ocean University of China, Qingdao 266100, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Guijie","family":"Liu","sequence":"additional","affiliation":[{"name":"Shandong Provincial Key Laboratory of Ocean Engineering, Ocean University of China, Qingdao 266100, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Shuqing","family":"Wang","sequence":"additional","affiliation":[{"name":"Shandong Provincial Key Laboratory of Ocean Engineering, Ocean University of China, Qingdao 266100, China"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2019,4,25]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"82","DOI":"10.1007\/s11802-018-3374-4","article-title":"Fatigue magnification factors of arc-soft-toe bracket joints","volume":"17","author":"Fu","year":"2018","journal-title":"J. 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