Researchers of AMADE – Universitat de Girona (A. Subramani, P. Maim\u00ed, J.M. Guerrero, J. Costa) have recently published the paper entitled \u201cNominal strength of notched pseudo-ductile specimens\u201d in the journal Theoretical and Applied Fracture Mechanics (Volume 128, December 2023, 104120).<\/p>\n\n\n\n
The paper is available for 50 days without subscription at: https:\/\/authors.elsevier.com\/c\/1hxa3_3qFjXshV<\/a><\/p>\n\n\n\n This work is part of the PhD thesis of Anbazhagan Subramani under the supervision of Pere Maimi and Josep Costa<\/p>\n\n\n\n Regarding the context of this research, quasi-brittle materials like composites are notch-sensitive, and the stress concentration factor (Kt<\/em>) determines their strength knock-down. To alleviate this notch sensitivity, researchers are pursuing pseudo-ductility to stimulate stress redistribution around the notches. However, how such a pseudo-ductile material reduces Kt<\/em> or improves the nominal strength (\u1c9cN<\/sub>) in notched sub-components (centre crack, elliptical hole and open hole) is unclear. In this work, we analytically determine the Kt<\/em> of typical notched specimens made of an idealised pseudo-ductile material and show its accuracy using Finite Element (FE) models. Kt <\/em>increases after the specimen transitions from localised yielding to net-section yielding. Then, we elucidate the size-effect behaviour of the notched sub-components using FE models. The study reveals that the notched pseudo-ductile specimens recover higher \u1c9cN than their linear elastic counterparts, in proportion to the Kt<\/em>. However, pseudo-ductility decreases the \u1c9cN for smaller specimens, and the notch shape is unimportant in this region.<\/p>\n\n\n\n The authors acknowledge the funding and support of Ministerio de Ciencia, Innovaci\u00f3n y Universidades for the project En pos de materiales compuestos de fibra larga h\u00edbridos, bio-basados y sostenibles para aplicaciones estructurales<\/em> (SUBHYCO) (PID2021-126989OB-I00<\/a>). Anbazhagan Subramani acknowledges the financial support of the Universitat de Girona, Spain for INV309_2019 and would also like to thank Universitat de Girona, Spain and Santander Universidades for the financial resources provided through Personal Investigador en formaci\u00f3<\/em> (IF_UDG), 2020. Jos\u00e9 M. Guerrero would like to acknowledge the funding from the post-doc grant Margarita Salas with reference REQ2021_A_15<\/a>, financed by the Spanish \u2018Ministerio de Universidades\u2019 and the European Union – Next Generation EU.<\/p>\n","protected":false},"excerpt":{"rendered":" Researchers of AMADE – Universitat de Girona (A. Subramani, P. Maim\u00ed, J.M. Guerrero, J. Costa) have recently published the paper entitled \u201cNominal strength of notched pseudo-ductile specimens\u201d in the journal Theoretical and Applied Fracture Mechanics (Volume 128, December 2023, 104120)….<\/p>\n","protected":false},"author":1,"featured_media":17146,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[49,57],"tags":[],"class_list":["post-17145","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news","category-subhyco"],"_links":{"self":[{"href":"https:\/\/amade.udg.edu\/index.php\/wp-json\/wp\/v2\/posts\/17145","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/amade.udg.edu\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/amade.udg.edu\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/amade.udg.edu\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/amade.udg.edu\/index.php\/wp-json\/wp\/v2\/comments?post=17145"}],"version-history":[{"count":1,"href":"https:\/\/amade.udg.edu\/index.php\/wp-json\/wp\/v2\/posts\/17145\/revisions"}],"predecessor-version":[{"id":17147,"href":"https:\/\/amade.udg.edu\/index.php\/wp-json\/wp\/v2\/posts\/17145\/revisions\/17147"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/amade.udg.edu\/index.php\/wp-json\/wp\/v2\/media\/17146"}],"wp:attachment":[{"href":"https:\/\/amade.udg.edu\/index.php\/wp-json\/wp\/v2\/media?parent=17145"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/amade.udg.edu\/index.php\/wp-json\/wp\/v2\/categories?post=17145"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/amade.udg.edu\/index.php\/wp-json\/wp\/v2\/tags?post=17145"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}