{"?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-H4B15A3H/b8d6a105-53b1-4849-8c2c-e9d4f4a572e5/HTML","dcterms:extent":"21 KB"},{"@rdf:about":"http://www.dlib.si/stream/URN:NBN:SI:DOC-H4B15A3H/5619cccc-da07-46c6-bbb3-ca3bfb519d89/PDF","dcterms:extent":"149 KB"},{"@rdf:about":"http://www.dlib.si/stream/URN:NBN:SI:DOC-H4B15A3H/2aec0ec6-ca51-47c3-809d-39d96358556e/TEXT","dcterms:extent":"19 KB"}],"edm:TimeSpan":{"@rdf:about":"2000-2024","edm:begin":{"@xml:lang":"en","#text":"2000"},"edm:end":{"@xml:lang":"en","#text":"2024"}},"edm:ProvidedCHO":{"@rdf:about":"URN:NBN:SI:DOC-H4B15A3H","dcterms:isPartOf":[{"@rdf:resource":"https://www.dlib.si/details/urn:nbn:si:spr-ihg6vo21"},{"@xml:lang":"sl","#text":"Materiali in tehnologije"}],"dcterms:issued":"2005","dc:creator":["Laš, Vladislav","Očenášek, Jan","Vacek, Vlastimil"],"dc:format":[{"@xml:lang":"sl","#text":"številka:3"},{"@xml:lang":"sl","#text":"letnik:39"},{"@xml:lang":"sl","#text":"5 strani"},{"@xml:lang":"sl","#text":"str. 83-87"}],"dc:identifier":["ISSN:1580-2949","COBISSID:393642","URN:URN:NBN:SI:doc-H4B15A3H"],"dc:language":"en","dc:publisher":{"@xml:lang":"sl","#text":"Inštitut za kovinske materiale in tehnologije"},"dc:subject":[{"@xml:lang":"sl","#text":"aluminijeve zlitine"},{"@xml:lang":"en","#text":"aluminium alloy"},{"@xml:lang":"sl","#text":"modeli"},{"@xml:lang":"sl","#text":"numerična simulacija"},{"@xml:lang":"sl","#text":"razpoke"},{"@rdf:resource":"http://www.wikidata.org/entity/Q447725"}],"dcterms:temporal":{"@rdf:resource":"2000-2024"},"dc:title":{"@xml:lang":"sl","#text":"Numerical determination of J-R curve using void model|"},"dc:description":[{"@xml:lang":"sl","#text":"The paper presents the determination of the J-R curve for an aluminium alloy. J-integral value is determined by numerical simulation of the test prescribed in ASTM E 1820-01. The crack growth Deltaa corresponding to the load increment is determined numerically. The Complete Gurson Model (CGM) based upon void models is adopted as a constitutive relation. This model describes the nucleation, growth and the coalescence of voids and it considers the constraint effect as well. The advantage of this approach is when compared with the standard experimental determination of the J-R curve that the number of experiments is reasonably lower in this case since only the experiments forthe determination of the CGM parameters are needed. These experiments require much less effort and are less time demanding. Numerical simulations for the determination of the J-R curve were performed for the CT specimen. The finite element method (FEM) code ABAQUS was used for the computation. A subroutine including the CGM was implemented into the code. Static loading and room temperature were assumed in all simulations"},{"@xml:lang":"sl","#text":"Predstavljena je določitev odvisnosti J-R za aluminijevo zlitino. J-integral je bil določen z numerično simulacijo preizkusa po ASTM E 1820-01. Napredovanje razpoke Deltaa pri povečanju obremenitve je bilo določeno numerično. Kot konstitutivna odvisnost je uporabljen Popoln Gursonov model (CGM) na podlagi propagacije mikrovotlin. Ta model opisuje nastanek, rast in koalescenco mikrovotlin ter upošteva tudi vpliv vpetosti. Prednost tega približka v primerjavi s standardno eksperimentalno določitvijo odvisnosti J-R je pomembno manjše število preizkusov, ker so za CGM potrebni le enostavni preizkusi. Numerična simulacija je bila izvršena za CT-preizkušanec. Za izračun je uporabljena metoda končnih elementov (FEM) in program Abaqus, v katerega je vstavljena podrutina s CGM. Pri vseh preizkusih smo uporabljali statično obremenjevanje pri sobni temperaturi"}],"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-H4B15A3H","edm:aggregatedCHO":{"@rdf:resource":"URN:NBN:SI:DOC-H4B15A3H"},"edm:isShownBy":{"@rdf:resource":"http://www.dlib.si/stream/URN:NBN:SI:DOC-H4B15A3H/5619cccc-da07-46c6-bbb3-ca3bfb519d89/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":"Inštitut za kovinske materiale in tehnologije"},"edm:object":{"@rdf:resource":"http://www.dlib.si/streamdb/URN:NBN:SI:DOC-H4B15A3H/maxi/edm"},"edm:isShownAt":{"@rdf:resource":"http://www.dlib.si/details/URN:NBN:SI:DOC-H4B15A3H"}}}}