Restoring fragmented marble epistyles: Some critical points

Kourkoulis, SK; Ganniari-Papageorgiou, E

dc.contributor.author	Kourkoulis, SK	en
dc.contributor.author	Ganniari-Papageorgiou, E	en
dc.date.accessioned	2014-03-01T01:34:27Z
dc.date.available	2014-03-01T01:34:27Z
dc.date.issued	2010	en
dc.identifier.issn	1296-2074	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/20738
dc.subject	Bending	en
dc.subject	Dionysos marble	en
dc.subject	Epistyles	en
dc.subject	Finite element method	en
dc.subject	Parthenon	en
dc.subject	Titanium	en
dc.subject.classification	Archaeology	en
dc.subject.classification	Art	en
dc.subject.classification	Geosciences, Multidisciplinary	en
dc.subject.classification	Spectroscopy	en
dc.subject.other	DOUBLE ELASTICITY	en
dc.subject.other	ROCK BEAMS	en
dc.subject.other	NONLINEARITY	en
dc.subject.other	RESTORATION	en
dc.subject.other	FLEXURE	en
dc.title	Restoring fragmented marble epistyles: Some critical points	en
heal.type	journalArticle	en
heal.identifier.primary	10.1016/j.culher.2010.01.002	en
heal.identifier.secondary	http://dx.doi.org/10.1016/j.culher.2010.01.002	en
heal.language	English	en
heal.publicationDate	2010	en
heal.abstract	The mechanical behavior of fragmented marble epistyles restored with titanium reinforcing bars is studied numerically using the Finite Element Method. The study is focused to the behavior of restored epistyles subjected to bending under uniform load along the free span of the structural element. The restoration method simulated is the one introduced a few years ago by the scientists working for the conservation of the Parthenon Temple on the Acropolis of Athens and is still under development. Attention is focused to the influence of the geometric features of the reinforcing bars as well as to the role of the cementitious material interposed between the marble and the bar. In addition, the contact properties of the marble-titanium, marble-cement and cement-titanium interfaces are also examined. To achieve the goals of the study, six numerical models are constructed considering centrally fractured prismatic marble epistyles of rectangular cross section restored with a single titanium bar, either cylindrical or threaded. The analysis reveals the critical regions, where the maximum stresses and the strain discontinuities appear and makes clear the influence of the geometrical characteristics of the reinforcing bar. Also, the crucial role of the constitutive law governing the mechanical behavior of the intermediate layer of cementitious material is enlightened. (C) 2010 Elsevier Masson SAS. All rights reserved.	en
heal.publisher	ELSEVIER FRANCE-EDITIONS SCIENTIFIQUES MEDICALES ELSEVIER	en
heal.journalName	Journal of Cultural Heritage	en
dc.identifier.doi	10.1016/j.culher.2010.01.002	en
dc.identifier.isi	ISI:000282680500008	en
dc.identifier.volume	11	en
dc.identifier.issue	4	en
dc.identifier.spage	420	en
dc.identifier.epage	429	en