{"?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-0QWZP6QE/aebaada2-5850-4327-bc9b-04e0b1b2c440/HTML","dcterms:extent":"15 KB"},{"@rdf:about":"http://www.dlib.si/stream/URN:NBN:SI:DOC-0QWZP6QE/8943f37e-ae0a-4482-8f2b-e637fa5e6864/PDF","dcterms:extent":"192 KB"},{"@rdf:about":"http://www.dlib.si/stream/URN:NBN:SI:DOC-0QWZP6QE/e9693265-45f5-4656-8c95-91d9eddd3cc3/TEXT","dcterms:extent":"12 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-0QWZP6QE","dcterms:isPartOf":[{"@rdf:resource":"https://www.dlib.si/details/urn:nbn:si:spr-ihg6vo21"},{"@xml:lang":"sl","#text":"Materiali in tehnologije"}],"dcterms:issued":"2012","dc:creator":["Kroupa, Tomáš","Srbová, Hana","Zemčík, Robert"],"dc:format":[{"@xml:lang":"sl","#text":"letnik:46"},{"@xml:lang":"sl","#text":"številka:5"},{"@xml:lang":"sl","#text":"str. 431-434"}],"dc:identifier":["ISSN:1580-2949","COBISSID:940202","URN:URN:NBN:SI:doc-0QWZP6QE"],"dc:language":"en","dc:publisher":{"@xml:lang":"sl","#text":"Inštitut za kovinske materiale in tehnologije"},"dc:subject":[{"@xml:lang":"sl","#text":"celica enote"},{"@xml:lang":"sl","#text":"enosmerni vlaknati kompozit"},{"@xml:lang":"sl","#text":"funkcija deformacijske utrditve matice"},{"@xml:lang":"en","#text":"identification"},{"@xml:lang":"sl","#text":"identifikacija"},{"@xml:lang":"en","#text":"matrix work-hardening function"},{"@xml:lang":"en","#text":"micromodel"},{"@xml:lang":"sl","#text":"mikromodel"},{"@xml:lang":"sl","#text":"nelinearno vedenje"},{"@xml:lang":"en","#text":"non-linear behavior"},{"@xml:lang":"sl","#text":"optimizacija"},{"@xml:lang":"en","#text":"optimization"},{"@xml:lang":"en","#text":"representative volume element"},{"@xml:lang":"sl","#text":"reprezentančni element volumna"},{"@xml:lang":"en","#text":"unidirectional fiber composite"},{"@xml:lang":"en","#text":"unit cell"},{"@rdf:resource":"http://www.wikidata.org/entity/Q895901"}],"dcterms:temporal":{"@rdf:resource":"2000-2024"},"dc:title":{"@xml:lang":"sl","#text":"Identification of the material parameters of a unidirectional fiber composite using a micromodel| Identifikacija parametrov materiala enosmernega kompozita z uporabo mikromodela|"},"dc:description":[{"@xml:lang":"sl","#text":"The paper is focused on the identification of material parameters of the substituents of an unidirectional carbon-epoxy long-fiber-reinforced composite. Simple tensile tests using thin coupons with various fiber orientations were performed and force-displacement diagrams were obtained. A model of a unit cell is created in MSC.Marc. Fibers are considered to form a non-linear, elastic, transversely isotropic material and the matrix is considered to be an elasto-plastic isotropic material. The unit cell is loaded by a uniaxial stress up to the same level of loadings as the experimental samples. The sum of the squared differences of displacements between the numerically and experimentally obtained force-displacement diagrams is minimized within an identification process. The parameters of the linear relation between the Young's modulus of fibers and strain in the fiber-axis direction, and three shape coefficients of the matrix work-hardening function are searched. The identification process is performed using the MSC.Marc, OptiSlang optimization software and Matlab"},{"@xml:lang":"sl","#text":"Cilj dela je bila identifikacija parametrov materiala za nadomestek pri enosmernem ogljik-epoksi dolgovlaknatem ojačenem kompozitu. Enostavni raztržni preizkusi z uporabo odrezkov z različno orientacijo vlaken so bili izvršeni in dobljeni so bili diagrami sila - pomik. Model z enotno celico je bil ustvarjen v MSC.Marc. Vlakna so bila upoštevana kot nelinearen elastičen, prečno izotropen material, matica pa je bila upoštevana kot elastoplastičen izotropen material. Vsota kvadratov razlik v pomiku med numerično in eksperimetalano doseženimi diagrami sila - deformacija je bila minimalizirana z identifikacijskim procesom. Iskani so bili parametri linearne odvisnosti med Young modulom vlaken in deformacijo v smeri osi vlaken ter trije oblikovni koeficienti za deformacijsko utrditev matice. Proces identifikacije je bil izvršen z uporabo MSC.Marc, OptiSlang-softvera za optimizacijo in Matlaba"}],"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-0QWZP6QE","edm:aggregatedCHO":{"@rdf:resource":"URN:NBN:SI:DOC-0QWZP6QE"},"edm:isShownBy":{"@rdf:resource":"http://www.dlib.si/stream/URN:NBN:SI:DOC-0QWZP6QE/8943f37e-ae0a-4482-8f2b-e637fa5e6864/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-0QWZP6QE/maxi/edm"},"edm:isShownAt":{"@rdf:resource":"http://www.dlib.si/details/URN:NBN:SI:DOC-0QWZP6QE"}}}}