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The evolution of caustics from holes to cracks

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dc.contributor.author Theocaris, PS en
dc.date.accessioned 2014-03-01T01:05:36Z
dc.date.available 2014-03-01T01:05:36Z
dc.date.issued 1976 en
dc.identifier.issn 00207683 en
dc.identifier.uri https://dspace.lib.ntua.gr/xmlui/handle/123456789/8898
dc.subject.other STRESSES - Analysis en
dc.subject.other CRACKS en
dc.subject.other ELLIPTIC HOLES en
dc.subject.other ELLIPTICITY en
dc.subject.other METHOD OF CAUSTICS en
dc.subject.other FRACTURE MECHANICS en
dc.title The evolution of caustics from holes to cracks en
heal.type journalArticle en
heal.identifier.primary 10.1016/0020-7683(76)90027-5 en
heal.identifier.secondary http://dx.doi.org/10.1016/0020-7683(76)90027-5 en
heal.publicationDate 1976 en
heal.abstract The method of caustics was used for the study of the evolution of stress concentration around a circular hole, which progressively changes in shape and becomes an elliptic hole, tending to an internal crack. The influence of the amount of ellipticity of the holes and their orientation relative to the axis of the applied external loads at infinity on the form of caustics created around the discontinuity was studied, as the elliptic holes tended to become internal cracks. A series of experiments with tension specimens containing small elliptic holes of any ellipticity and orientation was performed. Comparison of experimentally obtained caustics with theory yielded a good agreement of both results. Finally, the use of small elliptic holes drilled all over a biaxial stress field for the determination of the individual principal stresses and the principal directions at the area of the holes was outlined. © 1976. en
heal.journalName International Journal of Solids and Structures en
dc.identifier.doi 10.1016/0020-7683(76)90027-5 en
dc.identifier.volume 12 en
dc.identifier.issue 5 en
dc.identifier.spage 377 en
dc.identifier.epage 389 en


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