{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,4,30]],"date-time":"2026-04-30T05:52:06Z","timestamp":1777528326173,"version":"3.51.4"},"reference-count":29,"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>Stress state has a major influence on different phenomena, namely those involving diffusion and plastic deformation (like crack closure and high\u2010temperature fatigue crack growth, void formation or ductile fracture). The isolation of plane stress and plane strain states is crucial in fundamental studies of material behavior. The isolation of plane stress state is achieved with thin specimens, whilst the isolation of plane strain state is usually done increasing the thickness or introducing lateral grooves. The purpose of this paper is to propose a specimen geometry able to isolate the plane strain state, based on the standard M(T) geometry.<\/jats:p><\/jats:sec><jats:sec><jats:title content-type=\"abstract-heading\">Design\/methodology\/approach<\/jats:title><jats:p>A numerical study was carried out aiming at obtaining a stress triaxiality parameter, h, as a function of different geometrical features of the specimen, such as the notch radius, notch depth and specimen thickness.<\/jats:p><\/jats:sec><jats:sec><jats:title content-type=\"abstract-heading\">Findings<\/jats:title><jats:p>Results show that a pure plane strain state is achievable (i.e. 97 percent of specimen thickness has h&gt;0.97) if a specimen with optimized geometrical features is used, which corresponds to a notch radius of 0.5\u2009mm, a notch depth of 1\u2009mm and a total specimen thickness of 12.56\u2009mm.<\/jats:p><\/jats:sec><jats:sec><jats:title content-type=\"abstract-heading\">Originality\/value<\/jats:title><jats:p>This type of specimen geometry is a simple and efficient alternative to other common approaches used to obtain pure plain strain conditions for experimental purposes.<\/jats:p><\/jats:sec>","DOI":"10.1108\/17579861011099169","type":"journal-article","created":{"date-parts":[[2010,11,27]],"date-time":"2010-11-27T07:02:36Z","timestamp":1290841356000},"page":"332-343","source":"Crossref","is-referenced-by-count":8,"title":["Using a standard specimen for crack propagation under plain strain conditions"],"prefix":"10.1108","volume":"1","author":[{"given":"R.","family":"Branco","sequence":"first","affiliation":[]},{"given":"J.M.","family":"Silva","sequence":"additional","affiliation":[]},{"given":"V.","family":"Infante","sequence":"additional","affiliation":[]},{"given":"F.","family":"Antunes","sequence":"additional","affiliation":[]},{"given":"F.","family":"Ferreira","sequence":"additional","affiliation":[]}],"member":"140","reference":[{"key":"key2020022115543521500_b2","unstructured":"Antunes, F.V., Ferreira, J.A.M., Branco, C.M. and Byrne, J. 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