{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,1,18]],"date-time":"2026-01-18T15:15:43Z","timestamp":1768749343976,"version":"3.49.0"},"reference-count":17,"publisher":"Emerald","issue":"4","license":[{"start":{"date-parts":[[2010,11,1]],"date-time":"2010-11-01T00:00:00Z","timestamp":1288569600000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/www.emerald.com\/insight\/site-policies"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2010,11,1]]},"abstract":"<jats:sec><jats:title content-type=\"abstract-heading\">Purpose<\/jats:title><jats:p>The purpose of this paper is to develop a methodology for <jats:italic>in situ<\/jats:italic> stress intensity factor (SIF) determination that can be used for the analysis of cracked structures. The technique is based on digital image correlation (DIC) combined with an overdetermined algorithm.<\/jats:p><\/jats:sec><jats:sec><jats:title content-type=\"abstract-heading\">Design\/methodology\/approach<\/jats:title><jats:p>The linear overdeterministic algorithm for calculating the SIF based on stress values around the crack tip is applied to a strain field obtained by DIC.<\/jats:p><\/jats:sec><jats:sec><jats:title content-type=\"abstract-heading\">Findings<\/jats:title><jats:p>As long as the image quality is sufficiently high, a good accuracy can be obtained for the measured SIF. The crack tip can be automatically detected based on the same strain field. The use of the strain field instead of the displacement field, eliminates problems related to the rigid body motion of the analysed structure.<\/jats:p><\/jats:sec><jats:sec><jats:title content-type=\"abstract-heading\">Practical implications<\/jats:title><jats:p>In future works, based on the applied techniques, the SIF of complex cracked plane stress structures can be accurately determined in real engineering applications.<\/jats:p><\/jats:sec><jats:sec><jats:title content-type=\"abstract-heading\">Originality\/value<\/jats:title><jats:p>The paper demonstrates application of known techniques, refined for other applications, also the use of stress field for SIF overdeterministic calculations.<\/jats:p><\/jats:sec>","DOI":"10.1108\/17579861011099178","type":"journal-article","created":{"date-parts":[[2010,11,27]],"date-time":"2010-11-27T07:03:14Z","timestamp":1290841394000},"page":"344-357","source":"Crossref","is-referenced-by-count":8,"title":["Methodology for <i>in situ<\/i> stress intensity factor determination on cracked structures by digital image correlation"],"prefix":"10.1108","volume":"1","author":[{"given":"V.","family":"Richter\u2010Trummer","sequence":"first","affiliation":[]},{"given":"P.M.G.P.","family":"Moreira","sequence":"additional","affiliation":[]},{"given":"S.D.","family":"Pastrama","sequence":"additional","affiliation":[]},{"given":"M.A.P.","family":"Vaz","sequence":"additional","affiliation":[]},{"given":"P.M.S.T.","family":"de Castro","sequence":"additional","affiliation":[]}],"member":"140","reference":[{"key":"key2020022115543619500_b14","unstructured":"ASTM E647 (2008), \u201cStandard test method for measurement of fatigue crack growth rates\u201d, ASTM Standard, ASTM, West Conshohocken, PA."},{"key":"key2020022115543619500_b17","doi-asserted-by":"crossref","unstructured":"Beltz, G. and Machova, A. 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