The angle of initiation and propagation of cracks in ductile media

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dc.contributor.author Theocaris, PS en
dc.contributor.author Andrianopoulos, NP en
dc.contributor.author Kourkoulis, S en
dc.date.accessioned 2014-03-01T01:07:00Z
dc.date.available 2014-03-01T01:07:00Z
dc.date.issued 1987 en
dc.identifier.issn 0014-4851 en
dc.identifier.uri https://dspace.lib.ntua.gr/xmlui/handle/123456789/9730
dc.subject Crack Initiation en
dc.subject Experimental Data en
dc.subject Rigid Body en
dc.subject.classification Materials Science, Multidisciplinary en
dc.subject.classification Mechanics en
dc.subject.classification Materials Science, Characterization & Testing en
dc.subject.other ALUMINUM AND ALLOYS - Crack Propagation en
dc.subject.other ALUMINUM ZINC ALLOYS - Crack Propagation en
dc.subject.other FRACTURE MECHANICS en
dc.subject.other PLATES - Crack Propagation en
dc.subject.other ALLOY 7075 en
dc.subject.other ALLOY A-U2G en
dc.subject.other CRACK INITIATION ANGLE en
dc.subject.other DUCTILE FRACTURE en
dc.subject.other FRACTURE ANGLE en
dc.subject.other METALS AND ALLOYS en
dc.title The angle of initiation and propagation of cracks in ductile media en
heal.type journalArticle en
heal.identifier.primary 10.1007/BF02319462 en
heal.identifier.secondary http://dx.doi.org/10.1007/BF02319462 en
heal.language English en
heal.publicationDate 1987 en
heal.abstract A systematic study of the angle of crack initiation in cracked plates of ductile materials is presented. A method of measurement is proposed concerning the gathering of the experimental data and their statistical treatment. It is shown that the slope of either the bisector, or the middle line of the extending crack branches can equally well represent this angle. It is also shown that post-mortem measurements always result in absolutely lower values of this quantity, as they are compared to in-vivo measurements. Post-mortem measurements constitute a significant source of errors. A second considerable source of errors is ignorance of the rigid-body rotation of the initial crack. An evaluation of the magnitude of this rotation can be obtained experimentally by the moiré method. The corrected results are in good agreement with the theoretical predictions of the T criterion. © 1987 Society for Experimental Mechanics, Inc. en
heal.publisher Kluwer Academic Publishers en
heal.journalName Experimental Mechanics en
dc.identifier.doi 10.1007/BF02319462 en
dc.identifier.isi ISI:A1987J215100002 en
dc.identifier.volume 27 en
dc.identifier.issue 2 en
dc.identifier.spage 120 en
dc.identifier.epage 125 en

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