The reflected caustics formed from cross-sections of twisted prismatic bars

Theocaris, PS; Petrou, L

dc.contributor.author	Theocaris, PS	en
dc.contributor.author	Petrou, L	en
dc.date.accessioned	2014-03-01T01:07:42Z
dc.date.available	2014-03-01T01:07:42Z
dc.date.issued	1989	en
dc.identifier.issn	00015970	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/10127
dc.subject	Cross Section	en
dc.subject	Elastic Material	en
dc.subject	Experimental Study	en
dc.subject.other	Light--Reflection	en
dc.subject.other	Materials--Elasticity	en
dc.subject.other	Dynamic Loading	en
dc.subject.other	Elastic Torsion	en
dc.subject.other	Prismatic Bars	en
dc.subject.other	Reflected Caustics	en
dc.subject.other	Torsional Loading	en
dc.subject.other	Twisting Moment	en
dc.subject.other	Bars	en
dc.title	The reflected caustics formed from cross-sections of twisted prismatic bars	en
heal.type	journalArticle	en
heal.identifier.primary	10.1007/BF01253577	en
heal.identifier.secondary	http://dx.doi.org/10.1007/BF01253577	en
heal.publicationDate	1989	en
heal.abstract	If a prismatic bar made of a homogeneous isotropic and elastic material is submitted to torsion, cross sections of the bar are twisted and warped. In this paper the shape and size of the caustics and pseudocaustics formed from reflections of light rays on these cross sections were analytically and experimentally studied. This study is concerned with cross sections of circular, elliptic, triagular, and rectangular shapes of different ratios between their characteristic dimensions. It was proved that the experimentally derived caustics are in good agreement with the theoretical curves. Then this method of reflected caustics is a sensitive device for the detection and the accurate measurement of the torsional loading of such elements of structures. © 1989 Springer-Verlag.	en
heal.publisher	Springer-Verlag	en
heal.journalName	Acta Mechanica	en
dc.identifier.doi	10.1007/BF01253577	en
dc.identifier.volume	76	en
dc.identifier.issue	3-4	en
dc.identifier.spage	133	en
dc.identifier.epage	159	en