DC ElementWertSprache
dc.contributor.advisorEhlers, Sören-
dc.contributor.authorHochfellner, Veronika-
dc.date.accessioned2018-05-29T06:08:09Z-
dc.date.available2018-05-29T06:08:09Z-
dc.date.issued2018-
dc.identifier.urihttp://tubdok.tub.tuhh.de/handle/11420/1651-
dc.description.abstractFor the purpose of reliable life prediction the fatigue crack growth behaviour of a material has to be well-known. Therefore standardized fatigue crack growth tests are made with test specimens of the material. The obtained fatigue crack growth data is taken as material specific data and is given without any information of the test conditions and used specimen geometry. However, in several studies a geometry dependency of the test specimen on the fatigue crack growth data is found. Hence in this investigation experiments on fatigue crack growth behaviour are made with two different specimen geometries, the middle tension specimen M(T) and the compact (tension) specimen C(T). The direct current potential drop (DCPD) method is used to determine the crack lengths which is calibrated with the aid of beach marks and crack detection gauges. Two different configurations of the DCPD method are implemented to gain acceptable results. With the obtained data fatigue crack growth curves are established which are analysed regarding the geometry influence of the used test specimens. Discrepancies in the fatigue crack growth curves between the tested specimens are found. With these findings an approach is tested to create a material curve which is independent of the specimen geometry. However, this approach is not leading to satisfactory results. The implementation of the DCPD method in its main configuration on the used experimental setup proves to be applicable for fatigue crack growth tests on different geometries and will be used in further studies at low temperatures.en
dc.language.isoende_DE
dc.rightsinfo:eu-repo/semantics/openAccessde_DE
dc.subjectfatiguede_DE
dc.subjectconstraint effectde_DE
dc.subject.ddc620: Ingenieurwissenschaftende_DE
dc.titleInvestigation of constraint effect on fatigue crack growth rate measurementsde_DE
dc.typeThesisde_DE
dcterms.dateAccepted2017-09-25-
dc.identifier.urnurn:nbn:de:gbv:830-88220788-
dc.identifier.doi10.15480/882.1648-
dc.type.thesismasterThesisde_DE
dc.type.dinimasterThesis-
dc.subject.ddccode620-
dcterms.DCMITypeText-
tuhh.identifier.urnurn:nbn:de:gbv:830-88220788de_DE
tuhh.oai.showtrue-
dc.identifier.hdl11420/1651-
tuhh.abstract.englishFor the purpose of reliable life prediction the fatigue crack growth behaviour of a material has to be well-known. Therefore standardized fatigue crack growth tests are made with test specimens of the material. The obtained fatigue crack growth data is taken as material specific data and is given without any information of the test conditions and used specimen geometry. However, in several studies a geometry dependency of the test specimen on the fatigue crack growth data is found. Hence in this investigation experiments on fatigue crack growth behaviour are made with two different specimen geometries, the middle tension specimen M(T) and the compact (tension) specimen C(T). The direct current potential drop (DCPD) method is used to determine the crack lengths which is calibrated with the aid of beach marks and crack detection gauges. Two different configurations of the DCPD method are implemented to gain acceptable results. With the obtained data fatigue crack growth curves are established which are analysed regarding the geometry influence of the used test specimens. Discrepancies in the fatigue crack growth curves between the tested specimens are found. With these findings an approach is tested to create a material curve which is independent of the specimen geometry. However, this approach is not leading to satisfactory results. The implementation of the DCPD method in its main configuration on the used experimental setup proves to be applicable for fatigue crack growth tests on different geometries and will be used in further studies at low temperatures.de_DE
tuhh.publication.instituteKonstruktion und Festigkeit von Schiffen M-10de_DE
tuhh.identifier.doi10.15480/882.1648-
tuhh.type.opusMasterarbeitde
tuhh.institute.germanKonstruktion und Festigkeit von Schiffen M-10de
tuhh.institute.englishKonstruktion und Festigkeit von Schiffen M-10de_DE
tuhh.gvk.hasppnfalse-
tuhh.contributor.refereeBock und Polach, Rüdiger U. Franz von-
tuhh.contributor.refereeBraun, Moritz-
tuhh.hasurnfalse-
openaire.rightsinfo:eu-repo/semantics/openAccessde_DE
dc.type.drivermasterThesis-
thesis.grantor.universityOrInstitutionTechnische Universität Hamburgde_DE
thesis.grantor.placeHamburgde_DE
dc.type.casraiSupervised Student Publicationen
dc.rights.nationallicensefalsede_DE
item.fulltextWith Fulltext-
item.creatorGNDHochfellner, Veronika-
item.advisorGNDEhlers, Sören-
item.creatorOrcidHochfellner, Veronika-
item.grantfulltextopen-
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