{"?xml":{"@version":"1.0"},"edm:RDF":{"@xmlns:dc":"http://purl.org/dc/elements/1.1/","@xmlns:edm":"http://www.europeana.eu/schemas/edm/","@xmlns:wgs84_pos":"http://www.w3.org/2003/01/geo/wgs84_pos","@xmlns:foaf":"http://xmlns.com/foaf/0.1/","@xmlns:rdaGr2":"http://rdvocab.info/ElementsGr2","@xmlns:oai":"http://www.openarchives.org/OAI/2.0/","@xmlns:owl":"http://www.w3.org/2002/07/owl#","@xmlns:rdf":"http://www.w3.org/1999/02/22-rdf-syntax-ns#","@xmlns:ore":"http://www.openarchives.org/ore/terms/","@xmlns:skos":"http://www.w3.org/2004/02/skos/core#","@xmlns:dcterms":"http://purl.org/dc/terms/","edm:WebResource":[{"@rdf:about":"http://www.dlib.si/stream/URN:NBN:SI:DOC-2EAZG67J/75f2ae73-37a5-4587-8cd7-95461459376c/HTML","dcterms:extent":"45 KB"},{"@rdf:about":"http://www.dlib.si/stream/URN:NBN:SI:DOC-2EAZG67J/fbff05df-001f-4f23-8ccc-e8dcfea75bec/PDF","dcterms:extent":"244 KB"},{"@rdf:about":"http://www.dlib.si/stream/URN:NBN:SI:DOC-2EAZG67J/d9f45a83-1837-4228-86e2-b68bcb281322/TEXT","dcterms:extent":"46 KB"}],"edm:TimeSpan":{"@rdf:about":"1999-2025","edm:begin":{"@xml:lang":"en","#text":"1999"},"edm:end":{"@xml:lang":"en","#text":"2025"}},"edm:ProvidedCHO":{"@rdf:about":"URN:NBN:SI:DOC-2EAZG67J","dcterms:isPartOf":[{"@rdf:resource":"https://www.dlib.si/details/URN:NBN:SI:spr-6QOUKQ9A"},{"@xml:lang":"sl","#text":"Strojniški vestnik"}],"dcterms:issued":"2002","dc:creator":["Cizelj, Leon","Kovač, Marko","Simonovski, Igor"],"dc:format":[{"@xml:lang":"sl","#text":"številka:11"},{"@xml:lang":"sl","#text":"11 strani"},{"@xml:lang":"sl","#text":"letnik:48"},{"@xml:lang":"sl","#text":"str. 580-590"}],"dc:identifier":["ISSN:0039-2480","COBISSID:5641499","URN:URN:NBN:SI:doc-2EAZG67J"],"dc:language":["en","sl"],"dc:publisher":[{"@xml:lang":"sl","#text":"Association of Mechanical Engineers and Technicians of Slovenia et al."},{"@xml:lang":"sl","#text":"Zveza strojnih inženirjev in tehnikov Slovenije et al."}],"dc:subject":[{"@xml:lang":"sl","#text":"deformacija"},{"@xml:lang":"sl","#text":"kristali"},{"@xml:lang":"sl","#text":"mikrostructure materialov"},{"@xml:lang":"sl","#text":"mikrostruktura"},{"@xml:lang":"sl","#text":"polja deformacijska"},{"@xml:lang":"sl","#text":"skupki polikristalni"},{"@xml:lang":"sl","#text":"strukture zrnate"},{"@xml:lang":"sl","#text":"zrnatost"},{"@rdf:resource":"http://www.wikidata.org/entity/Q43533"}],"dcterms:temporal":{"@rdf:resource":"1999-2025"},"dc:title":{"@xml:lang":"sl","#text":"Vpliv zrnate strukture na elasto-plastični odziv polikristalnega skupka| The effect of grain structure on the elastic-plastic response of a polycrystalline aggregate|"},"dc:description":[{"@xml:lang":"sl","#text":"One of the key assumptions of classical continuum machanics is the idealization of the nonhomogeneous microstructure of a material. With this assumption in mind, the differences between measured responses of specimens that are different in size but geometrically similar (size effect) cannot be predicted accurately. A numerical approach, which models elastic-plastic behaviour on the mesoscopic level, is proposed in determine the effect of the polycrystalline grain structure on the macroscopic response. The main idea is to divide the continuum into a set of sub-continua. The analysis of the macroscopic element is divided into modeling the random grain structure (using Voronoi tessellation and the random orientation of crystal lattice) and the calculation of the strain/stress field. The main purpose of the paper is to estimate the minimum size of the polycrystalline aggregate above which the macroscopic inhomogeneity of the grain structure of a given material vanishes and is therefore not expected to cause significant size effects"},{"@xml:lang":"sl","#text":"Ena od ključnih predpostavk mehanike trdnin je idealiziranje nehomogene mikrostrukture materiala. Ob takšni predpostavki ne moremo natančno napovedati razlik med meritvami odziva različno velikih, a geometrijsko podobnih preskušancev (vpliv velikosti). Za določitev vpliva zrnate strukture na makroskopski odziv je predlagan postopek, ki modelira elasto-plastično obnašanje materiala na mezoskopski ravni. Glavna zamisel je razdelitev trdnine na posamezne dele. Obravnava mikroskopskega elementa je razdeljena na modeliranje naključne kristalne strukture (uporaba Voronojevega mozaika in naključne usmerjenosti kristalne rešetke) ter izračun napetostnega oziroma deformacijskega polja. Glavni namen prispevka je ocena najmanjše velikosti polikristalnega skupka, nad katero se makroskopska nehomogenost zrnate strukture danega materiala porazgubi in zato ni pričakovati, da bi povzročala opaznejši vpliv velikosti"}],"edm:type":"TEXT","dc:type":[{"@xml:lang":"sl","#text":"znanstveno časopisje"},{"@xml:lang":"en","#text":"journals"},{"@rdf:resource":"http://www.wikidata.org/entity/Q361785"}]},"ore:Aggregation":{"@rdf:about":"http://www.dlib.si/?URN=URN:NBN:SI:DOC-2EAZG67J","edm:aggregatedCHO":{"@rdf:resource":"URN:NBN:SI:DOC-2EAZG67J"},"edm:isShownBy":{"@rdf:resource":"http://www.dlib.si/stream/URN:NBN:SI:DOC-2EAZG67J/fbff05df-001f-4f23-8ccc-e8dcfea75bec/PDF"},"edm:rights":{"@rdf:resource":"http://rightsstatements.org/vocab/InC/1.0/"},"edm:provider":"Slovenian National E-content Aggregator","edm:intermediateProvider":{"@xml:lang":"en","#text":"National and University Library of Slovenia"},"edm:dataProvider":{"@xml:lang":"sl","#text":"Univerza v Ljubljani, Fakulteta za strojništvo"},"edm:object":{"@rdf:resource":"http://www.dlib.si/streamdb/URN:NBN:SI:DOC-2EAZG67J/maxi/edm"},"edm:isShownAt":{"@rdf:resource":"http://www.dlib.si/details/URN:NBN:SI:DOC-2EAZG67J"}}}}