U-notched Dionysos-Pentelicon marble beams in three point bending: The effect of nonlinearity, anisotropy and microstructure

Kourkoulis, SK; Exadaktylos, GE; Vardoulakis, I

dc.contributor.author	Kourkoulis, SK	en
dc.contributor.author	Exadaktylos, GE	en
dc.contributor.author	Vardoulakis, I	en
dc.date.accessioned	2014-03-01T01:15:21Z
dc.date.available	2014-03-01T01:15:21Z
dc.date.issued	1999	en
dc.identifier.issn	0376-9429	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/13457
dc.subject	Anisotropy	en
dc.subject	Bending	en
dc.subject	Marble	en
dc.subject	Microstructure	en
dc.subject	Nonlinearity	en
dc.subject	Notch	en
dc.subject.classification	Mechanics	en
dc.subject.other	Anisotropy	en
dc.subject.other	Bending strength	en
dc.subject.other	Boundary element method	en
dc.subject.other	Deflection (structures)	en
dc.subject.other	Fracture	en
dc.subject.other	Marble	en
dc.subject.other	Mechanical testing	en
dc.subject.other	Microstructure	en
dc.subject.other	Strain	en
dc.subject.other	Dionysos-Pentelicon marble	en
dc.subject.other	Indirect boundary element method	en
dc.subject.other	Nonlinearity	en
dc.subject.other	Notch mouth opening displacement	en
dc.subject.other	Stress strain relation	en
dc.subject.other	Three point bending tests	en
dc.subject.other	Beams and girders	en
dc.title	U-notched Dionysos-Pentelicon marble beams in three point bending: The effect of nonlinearity, anisotropy and microstructure	en
heal.type	journalArticle	en
heal.identifier.primary	10.1023/A:1018614023542	en
heal.identifier.secondary	http://dx.doi.org/10.1023/A:1018614023542	en
heal.language	English	en
heal.publicationDate	1999	en
heal.abstract	The failure of notched beams made from Dionysos-Pentelicon marble is studied in the present work, both experimentally and numerically. A series of properly designed three point bending tests were carried out using specimens with notches of various depths. The strain variation at strategic points of the specimens, as well as the deflection of the lower fibers and the notch mouth opening displacement were recorded during the tests as functions of the applied load. The experimental results were compared with the respective ones obtained from a linear elastic and isotropic numerical solution based on the Indirect Boundary Element Method. The agreement between them was found to be satisfactory for most quantities compared. Some discrepancies observed are critically discussed. It is indicated that ignoring the nonlinearity of the stress-strain relation as well as the anisotropy and microstructure of this type of marble may lead to fallacious conclusions.	en
heal.publisher	KLUWER ACADEMIC PUBL	en
heal.journalName	International Journal of Fracture	en
dc.identifier.doi	10.1023/A:1018614023542	en
dc.identifier.isi	ISI:000083714600020	en
dc.identifier.volume	98	en
dc.identifier.issue	3-4	en
dc.identifier.spage	369	en
dc.identifier.epage	392	en