Range of applicability of the method of caustics around holes

Badalouka, BG; Papadopoulos, GA

dc.contributor.author	Badalouka, BG	en
dc.contributor.author	Papadopoulos, GA	en
dc.date.accessioned	2014-03-01T01:25:03Z
dc.date.available	2014-03-01T01:25:03Z
dc.date.issued	2006	en
dc.identifier.issn	0039-2103	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/17516
dc.subject	Caustics	en
dc.subject	Stresses at holes	en
dc.subject	Three-dimensional effects	en
dc.subject.classification	Materials Science, Characterization & Testing	en
dc.subject.other	Finite element method	en
dc.subject.other	Stresses	en
dc.subject.other	Caustics	en
dc.subject.other	Cylindrical holes	en
dc.subject.other	Generatrix curve	en
dc.subject.other	Plane stress conditions	en
dc.subject.other	Optical devices	en
dc.title	Range of applicability of the method of caustics around holes	en
heal.type	journalArticle	en
heal.identifier.primary	10.1111/j.1475-1305.2006.00289.x	en
heal.identifier.secondary	http://dx.doi.org/10.1111/j.1475-1305.2006.00289.x	en
heal.language	English	en
heal.publicationDate	2006	en
heal.abstract	The range of applicability of the optical method of caustics, which is based on plane stress conditions, around cylindrical holes in plane specimens is investigated. The position of the generatrix curve of the caustic and the conditions, which influence its size, are defined. The dimensions of the specimen, the ratio of the thickness to the diameter of the hole, the applied stress and the dimensions of the optical set-up influence the position of the generatrix curve of the caustic. At a critical distance from the boundary of the hole the state of stress degenerates from three-dimensional to plane stress. In this paper, the extent of this region was defined by finite element analysis, in case of uniaxial tension. The defined critical distance was correlated with the condition, which influence the caustic, thus the range of applicability of the method of caustic around hole was defined. The validity of this range was experimentally checked. © 2006 The Authors. Journal compilation 2006 Blackwell Publishing Ltd.	en
heal.publisher	BLACKWELL PUBLISHING	en
heal.journalName	Strain	en
dc.identifier.doi	10.1111/j.1475-1305.2006.00289.x	en
dc.identifier.isi	ISI:000241347200006	en
dc.identifier.volume	42	en
dc.identifier.issue	4	en
dc.identifier.spage	283	en
dc.identifier.epage	290	en