{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,18]],"date-time":"2026-08-18T05:07:03Z","timestamp":1787029623277,"version":"build-2736575974"},"reference-count":39,"publisher":"MDPI AG","issue":"15","license":[{"start":{"date-parts":[[2022,7,22]],"date-time":"2022-07-22T00:00:00Z","timestamp":1658448000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100002241","name":"Adaptable and Seamless Technology transfer Program through Target-driven R&amp; D (A-STEP) from the Japan Science and Technology Agency (JST)","doi-asserted-by":"publisher","award":["JPMJTR20RL"],"award-info":[{"award-number":["JPMJTR20RL"]}],"id":[{"id":"10.13039\/501100002241","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100002241","name":"Adaptable and Seamless Technology transfer Program through Target-driven R&amp; D (A-STEP) from the Japan Science and Technology Agency (JST)","doi-asserted-by":"publisher","award":["22H01786"],"award-info":[{"award-number":["22H01786"]}],"id":[{"id":"10.13039\/501100002241","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100002241","name":"Adaptable and Seamless Technology transfer Program through Target-driven R&amp; D (A-STEP) from the Japan Science and Technology Agency (JST)","doi-asserted-by":"publisher","award":["19H00835"],"award-info":[{"award-number":["19H00835"]}],"id":[{"id":"10.13039\/501100002241","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100002241","name":"Adaptable and Seamless Technology transfer Program through Target-driven R&amp; D (A-STEP) from the Japan Science and Technology Agency (JST)","doi-asserted-by":"publisher","award":["17H06374"],"award-info":[{"award-number":["17H06374"]}],"id":[{"id":"10.13039\/501100002241","id-type":"DOI","asserted-by":"publisher"}]},{"name":"JSPS KAKENHI","award":["JPMJTR20RL"],"award-info":[{"award-number":["JPMJTR20RL"]}]},{"name":"JSPS KAKENHI","award":["22H01786"],"award-info":[{"award-number":["22H01786"]}]},{"name":"JSPS KAKENHI","award":["19H00835"],"award-info":[{"award-number":["19H00835"]}]},{"name":"JSPS KAKENHI","award":["17H06374"],"award-info":[{"award-number":["17H06374"]}]},{"name":"Council for Science, Technology and Innovation (CSTI)","award":["JPMJTR20RL"],"award-info":[{"award-number":["JPMJTR20RL"]}]},{"name":"Council for Science, Technology and Innovation (CSTI)","award":["22H01786"],"award-info":[{"award-number":["22H01786"]}]},{"name":"Council for Science, Technology and Innovation (CSTI)","award":["19H00835"],"award-info":[{"award-number":["19H00835"]}]},{"name":"Council for Science, Technology and Innovation (CSTI)","award":["17H06374"],"award-info":[{"award-number":["17H06374"]}]},{"name":"Cross-ministerial Strategic Innovation Promotion Program (SIP)","award":["JPMJTR20RL"],"award-info":[{"award-number":["JPMJTR20RL"]}]},{"name":"Cross-ministerial Strategic Innovation Promotion Program (SIP)","award":["22H01786"],"award-info":[{"award-number":["22H01786"]}]},{"name":"Cross-ministerial Strategic Innovation Promotion Program (SIP)","award":["19H00835"],"award-info":[{"award-number":["19H00835"]}]},{"name":"Cross-ministerial Strategic Innovation Promotion Program (SIP)","award":["17H06374"],"award-info":[{"award-number":["17H06374"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Sensors"],"abstract":"<jats:p>Non-destructive testing of carbon-fiber-reinforced plastic (CFRP) laminates with bidirectional fiber bundles (twill-weave) using a mechanoluminescence (ML) technique was proposed. The dynamic strain distributions and fracture phenomena of the CFRP laminates in the tensile testing were evaluated by the fabricated ML sensor consisting of SrAl2O4:Eu (SAOE) powder and epoxy resin. The ML images for the ML sensor attached to the CFRP laminates with bidirectional fiber bundles gave a net-like ML intensity distribution similar to the original twill weave pattern. Specifically, it was found that the ML intensity on the longitudinal fiber bundle, which is the same as the tensile direction, is higher than that on the transverse fiber bundle. This indicates that the ML sensor can visualize the load share between fiber bundles in different directions of the CFRP laminate with high spatial resolution. Meanwhile, the ML sensor could also visualize the ultrafast discontinuous fracture process of the CFRP laminates and its stress distribution. The amount of SAOE powder in the ML sensor affects the tracking performance of the crack propagation. A higher SAOE amount leads to a fracture of the ML sensor itself, and a lower SAOE amount leads to poor ML characteristics.<\/jats:p>","DOI":"10.3390\/s22155476","type":"journal-article","created":{"date-parts":[[2022,7,25]],"date-time":"2022-07-25T04:52:47Z","timestamp":1658724767000},"page":"5476","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":14,"title":["Flexible Mechanoluminescent SrAl2O4:Eu Film with Tracking Performance of CFRP Fracture Phenomena"],"prefix":"10.3390","volume":"22","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-1776-474X","authenticated-orcid":false,"given":"Yuki","family":"Fujio","sequence":"first","affiliation":[{"name":"Sensing System Research Center, National Institute of Advanced Industrial Science and Technology (AIST), Saga 841-0052, Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Chao-Nan","family":"Xu","sequence":"additional","affiliation":[{"name":"Sensing System Research Center, National Institute of Advanced Industrial Science and Technology (AIST), Saga 841-0052, Japan"},{"name":"Department of Molecular and Material Science, Kyushu University, Fukuoka 816-8580, Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Nao","family":"Terasaki","sequence":"additional","affiliation":[{"name":"Sensing System Research Center, National Institute of Advanced Industrial Science and Technology (AIST), Saga 841-0052, Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2022,7,22]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"50","DOI":"10.1016\/S0010-4361(69)80012-1","article-title":"Improving racing-car bodies","volume":"1","author":"Phillips","year":"1969","journal-title":"Composites"},{"key":"ref_2","doi-asserted-by":"crossref","first-page":"95","DOI":"10.1023\/A:1008915706226","article-title":"Fiber Reinforced Composites\u2014Advanced Materials for the Renewal of Civil Infrastructure","volume":"7","author":"Karbhari","year":"2000","journal-title":"Appl. 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