Definition of the crack tip as the center of the caustic

Theocaris, PS

dc.contributor.author	Theocaris, PS	en
dc.date.accessioned	2014-03-01T01:07:25Z
dc.date.available	2014-03-01T01:07:25Z
dc.date.issued	1989	en
dc.identifier.issn	0013-7944	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/9987
dc.subject.classification	Mechanics	en
dc.subject.other	Optics--Geometrical	en
dc.subject.other	Stresses--Evaluation	en
dc.subject.other	Bifurcation Process	en
dc.subject.other	Caustics	en
dc.subject.other	Crack Tip	en
dc.subject.other	Elastic Stress Fields	en
dc.subject.other	Geometric Construction	en
dc.subject.other	Plates	en
dc.title	Definition of the crack tip as the center of the caustic	en
heal.type	journalArticle	en
heal.identifier.primary	10.1016/0013-7944(89)90039-8	en
heal.identifier.secondary	http://dx.doi.org/10.1016/0013-7944(89)90039-8	en
heal.language	English	en
heal.publicationDate	1989	en
heal.abstract	The optical caustics developed around singularities in elastic stress fields have usually the shape of generalized epicycloids. The most important caustics in the praxis are created around singularities at crack tips submitted to various types of loading. In this paper an exact geometric construction is presented for defining the exact position of the center of the caustic which coincides with the crack tip. The method based on the properties of caustics is superior to any other approximate method based on hybrid mathematical procedures using data from experiments and defining the centers by elaborate solutions. © 1989.	en
heal.publisher	PERGAMON-ELSEVIER SCIENCE LTD	en
heal.journalName	Engineering Fracture Mechanics	en
dc.identifier.doi	10.1016/0013-7944(89)90039-8	en
dc.identifier.isi	ISI:A1989AD89000006	en
dc.identifier.volume	33	en
dc.identifier.issue	4	en
dc.identifier.spage	553	en
dc.identifier.epage	559	en