Caustics in plane strain-evaluation of COD and the core region

Theocaris, PS

dc.contributor.author	Theocaris, PS	en
dc.date.accessioned	2014-03-01T01:06:15Z
dc.date.available	2014-03-01T01:06:15Z
dc.date.issued	1984	en
dc.identifier.issn	0013-7944	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/9263
dc.subject.classification	Mechanics	en
dc.subject.other	FRACTURE MECHANICS	en
dc.title	Caustics in plane strain-evaluation of COD and the core region	en
heal.type	journalArticle	en
heal.identifier.primary	10.1016/0013-7944(84)90070-5	en
heal.identifier.secondary	http://dx.doi.org/10.1016/0013-7944(84)90070-5	en
heal.language	English	en
heal.publicationDate	1984	en
heal.abstract	The method of reflected caustics, which is believed up-to-now to apply only for plane-stress problems, was extended in this paper to elastic fields under conditions of plane-strain, containing any type of singularity due either to the mode of loading, or to the geometry of the stress field. The optical far-field theory valid in such types of fields was developed and experimental criteria were given for the first time, for deciding under what conditions the elastic field around a crack or any discontinuity is in a pure state of plane-stress or in a plane-strain, or in a mixed mode (triaxial) of deformation. Examples with transverse edge cracks of varying length in plates under uniaxial mode of loading corroborate the results of the theory. Finally, a technique was introduced for the accurate evaluation of the crack-opening displacement at the tip of the crack, as well as of the area covered by the core region for specimens under conditions of plane strain. © 1984.	en
heal.publisher	PERGAMON-ELSEVIER SCIENCE LTD	en
heal.journalName	Engineering Fracture Mechanics	en
dc.identifier.doi	10.1016/0013-7944(84)90070-5	en
dc.identifier.isi	ISI:A1984RV24500007	en
dc.identifier.volume	19	en
dc.identifier.issue	1	en
dc.identifier.spage	81	en
dc.identifier.epage	92	en