{"?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-PHQMC8FC/819f55c5-0760-453c-ac36-5f6111401693/PDF","dcterms:extent":"600 KB"},{"@rdf:about":"http://www.dlib.si/stream/URN:NBN:SI:DOC-PHQMC8FC/c675c18e-fc0e-4a72-b82f-fdffa5be2185/TEXT","dcterms:extent":"13 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-PHQMC8FC","dcterms:isPartOf":[{"@rdf:resource":"https://www.dlib.si/details/urn:nbn:si:spr-ihg6vo21"},{"@xml:lang":"sl","#text":"Materiali in tehnologije"}],"dcterms:issued":"2014","dc:creator":["Doktor, Tomáš","Fíla, Tomáš","Kytýř, Daniel","Šleichrt, Jan","Šperl, Martin"],"dc:format":[{"@xml:lang":"sl","#text":"letnik:48"},{"@xml:lang":"sl","#text":"številka:5"},{"@xml:lang":"sl","#text":"str. 777-780"}],"dc:identifier":["COBISSID:1097642","ISSN:1580-2949","URN:URN:NBN:SI:doc-PHQMC8FC"],"dc:language":"en","dc:publisher":{"@xml:lang":"sl","#text":"Inštitut za kovinske materiale in tehnologije"},"dc:subject":[{"@xml:lang":"en","#text":"carbon-fibre composites"},{"@xml:lang":"sl","#text":"kompoziti"},{"@xml:lang":"en","#text":"laser profilometry"},{"@xml:lang":"sl","#text":"laserska profilometrija"},{"@xml:lang":"sl","#text":"ogljikova vlakna"},{"@xml:lang":"en","#text":"post-impact damage"},{"@xml:lang":"sl","#text":"poškodba po udarcu"},{"@rdf:resource":"http://www.wikidata.org/entity/Q5860"}],"dcterms:temporal":{"@rdf:resource":"2000-2024"},"dc:title":{"@xml:lang":"sl","#text":"Assessment of the post-impact damage propagation in a carbon-fibre composite under cyclic loading| Ocena napredovanja poškodbe po udarcu pri ponavljajočih se obremenitvah kompozita z ogljikovimi vlakni|"},"dc:description":[{"@xml:lang":"sl","#text":"Carbon fibre in polyphenylene sulfide composites (C/PPS) became a popular material in the aircraft industry but its fragility and low impact resistance limits its application in primary aircraft structures. This study is focused on damage propagation in the laminated composites reinforced with carbon fibres. The damage may be inflicted during the ground maintenance, by an inflight bird strike or during a flight in severe meteorological conditions (heavy storms). The initial damage was created by a drop-weight out-of-plane impact using a spherical indenter. The response of the material was analysed by monitoring the impacted zones and their propagation history. The influenced area and specimen thickness in the centres of indents were chosen as the degradation parameters. The post-impact damage propagation induced by cyclic loading was assessed using a custom-designed computer-controlled laser-profilometery device. Both the upper and lower profiles of the specimen were scanned during the interruptions of the fatigue test. Global deformation was described with an analytically determined centroidal-axis curve. Local topography changes were obtained with a subtraction of this curve. Surface-deformation maps were created and used for a demonstration of the damage propagation in the specimen"},{"@xml:lang":"sl","#text":"Ogljikova vlakna v kompozitih iz polifenilen sulfida (C/PPS) so postala priljubljen material v letalski industriji, toda njihova krhkost in slaba odpornost proti udarcem omejujeta njihovo uporabo v primarnih letalskih konstrukcijah. Ta raziskava se osredinja na napredovanje poškodbe na laminiranih kompozitih, ojačanih z ogljikovimi vlakni. Poškodba lahko nastane med vzdrževanjem na tleh, pri trčenju s ptico med letom ali med letom v hudih vremenskih razmerah (huda nevihta). Začetna poškodba je bila narejena z udarno pregibnim preizkusom s kroglastim vtiskovalcem. Odziv materiala je bil analiziran z opazovanjem območij udarca in potekom napredovanja. Prizadeto območje in debelina vzorca v področju vtiska sta bila izbrana kot parametra degradacije. Napredovanje poškodbe po cikličnem obremenjevanju po udarcu je bilo ocenjeno s po meri oblikovane računalniško vodene naprave za lasersko profilometrijo. Zgornji in spodnji profil vzorca sta bila skenirana med prekinitvami preizkušanja utrujenosti. Celotna deformacija je bila opisana z analitično določeno krivuljo težiščnice. Lokalne spremembe topografije so bile dobljene z odštetjem te krivulje. Ustvarjeni videzi deformacije površine so bili uporabljeni za prikaz napredovanja poškodbe na vzorcu"}],"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-PHQMC8FC","edm:aggregatedCHO":{"@rdf:resource":"URN:NBN:SI:DOC-PHQMC8FC"},"edm:isShownBy":{"@rdf:resource":"http://www.dlib.si/stream/URN:NBN:SI:DOC-PHQMC8FC/819f55c5-0760-453c-ac36-5f6111401693/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-PHQMC8FC/maxi/edm"},"edm:isShownAt":{"@rdf:resource":"http://www.dlib.si/details/URN:NBN:SI:DOC-PHQMC8FC"}}}}