Crack Paths at Multiple-crack Systems in Anisotropic Simulation and Experiment

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dc.date.accessioned2020-11-06T11:58:47Z
dc.date.available2020-11-06T11:58:47Z
dc.date.issued2014-06-27
dc.identifierdoi:10.17170/kobra-202011062096
dc.identifier.urihttp://hdl.handle.net/123456789/11929
dc.language.isoeng
dc.relation.doidoi:10.1016/j.mspro.2014.06.343
dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 International*
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/*
dc.subjectcrack growtheng
dc.subjectanisotropyeng
dc.subjectJ-integraleng
dc.subjectinteraction integraleng
dc.subjectcurved crackseng
dc.subject.ddc620
dc.subject.swdVerbundwerkstoffger
dc.subject.swdAnisotropieger
dc.subject.swdEigenschaftger
dc.titleCrack Paths at Multiple-crack Systems in Anisotropic Simulation and Experimenteng
dc.typeAufsatz
dc.type.versionpublishedVersion
dcterms.abstractThis paper is targeted on numerical methods for accurate crack tip loading analysis and crack path prediction. Those are based on finite element calculations of the boundary value problem. Applying path-independent integrals to curved cracks in order to accurately calculate the J-integral, energy release rate (ERR) or stress intensity factors (SIF) is still not state of the art. Contours which are not confined to the crack tip require special analytical preparation and numerical treatment to supply results which are sufficiently precise for reliable crack path prediction. Methods to improve the calculation of the J-integral and the interaction integral (I-integral) are presented. In particular, the latter has never been applied to strongly curved cracks. Also, efficient methods for the loading analysis and crack growth simulation of multiple interacting cracks based on path-independent integrals are presented. The anisotropy of fracture toughness is taken into account being a crucial part of the numerical model. Experiments are carried out with specimens made of aluminum alloy Al-7075, comparing subcritically grown cracks with simulations.eng
dcterms.accessRightsopen accessger
dcterms.creatorJudt, Paul O.
dcterms.creatorRicoeur, Andreas
dcterms.creatorLinek, Günter
dcterms.event20th European Conference on Fracture (ECF20)
dcterms.source.identifiereissn:2211-8128
dcterms.source.issueVolume 3
dcterms.source.journalProcedia Materials Scienceeng
dcterms.source.pageinfo2122 - 2127
dcterms.source.volume2014
kup.iskupfalse

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