{"?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-0FSRVSP2/cc91791d-d617-423c-8cbf-4cb44ed36d97/HTML","dcterms:extent":"31 KB"},{"@rdf:about":"http://www.dlib.si/stream/URN:NBN:SI:DOC-0FSRVSP2/4cc8c5c2-76f8-4636-a446-93eaa3416a3f/PDF","dcterms:extent":"654 KB"},{"@rdf:about":"http://www.dlib.si/stream/URN:NBN:SI:DOC-0FSRVSP2/9ed8f51b-6df3-4f85-8cad-41c373db0cd3/TEXT","dcterms:extent":"29 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-0FSRVSP2","dcterms:isPartOf":[{"@rdf:resource":"https://www.dlib.si/details/URN:NBN:SI:spr-6QOUKQ9A"},{"@xml:lang":"sl","#text":"Strojniški vestnik"}],"dcterms:issued":"2008","dc:creator":["Koc, Pino","Štok, Boris"],"dc:format":[{"@xml:lang":"sl","#text":"številka:12"},{"@xml:lang":"sl","#text":"letnik:54"},{"@xml:lang":"sl","#text":"9 strani"},{"@xml:lang":"sl","#text":"str. 821-829"}],"dc:identifier":["ISSN:0039-2480","COBISSID:10772507","URN:URN:NBN:SI:doc-0FSRVSP2"],"dc:language":"en","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":"globoki vlek"},{"@xml:lang":"sl","#text":"jeklo"},{"@xml:lang":"sl","#text":"natezni preizkus"},{"@xml:lang":"sl","#text":"plastičnost"},{"@rdf:resource":"http://www.wikidata.org/entity/Q115605"}],"dcterms:temporal":{"@rdf:resource":"1999-2025"},"dc:title":{"@xml:lang":"sl","#text":"Usage of the yield curve in numerical simulations|"},"dc:description":[{"@xml:lang":"sl","#text":"A comparison of two approaches used in the yield curve characterization of thesame material is given in the paper. The first approach is commonly used Ludwig's law with the extension over large strains based on the pre-necking response of a tensile test specimen, whereas the second approach is inverse identification which is based on the post-necking behaviour of the same tensile test specimen. Features of both approaches are examined in the tensile test and deep drawing simulations. In the tensile test simulation the inverse identification method proved to be superior over Ludwig's law. The deep drawing simulation demonstrates how inappropriate yield curve usage leads to wrong predictions"},{"@xml:lang":"sl","#text":"V prispevku je obravnavano določevanje krivulje plastičnega tečenja jeklene pločevine pri velikih deformacijah. Uporabljena sta dva računska postopka, obema pa kot eksperimentalna osnova služi klasični natezni preizkus. Pri prvem postopku krivuljo plastičnega tečenja aproksimiramo s pomočjo t.i. Ludvikovega zakona ter tako dobljeno krivuljo se ekstrapoliramo na območje velikih deformacij. Drugi postopek temelji na inverzni identifikaciji, kjer krivuljo plastičnega tečenja pri velikih deformacijah okarakteriziramo na osnovi meritev nateznega preizkusa po nastanku lokalne zožitve na nateznem preizkušancu. Značilnosti obeh postopkov so obrazložene na primerih računalniskih simulacij nateznega preizkusa in globokega vleka. Že v primeru simulacije nateznega preizkusa metoda inverzne identifikacije prekaša metodo aproksimacije z Ludvikovim zakonom, primer simulacije globokega vleka pa nazorno prikaže, kako uporaba neprimerne krivulje plastičnega tečenja vodi do napačnih sklepov in napovedi"}],"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-0FSRVSP2","edm:aggregatedCHO":{"@rdf:resource":"URN:NBN:SI:DOC-0FSRVSP2"},"edm:isShownBy":{"@rdf:resource":"http://www.dlib.si/stream/URN:NBN:SI:DOC-0FSRVSP2/4cc8c5c2-76f8-4636-a446-93eaa3416a3f/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-0FSRVSP2/maxi/edm"},"edm:isShownAt":{"@rdf:resource":"http://www.dlib.si/details/URN:NBN:SI:DOC-0FSRVSP2"}}}}