Rayleigh wave propagation in intact and damaged geomaterials

Stavropoulou, M; Exadaktylos, G; Papamichos, E; Larsen, I; Ringstad, C

dc.contributor.author	Stavropoulou, M	en
dc.contributor.author	Exadaktylos, G	en
dc.contributor.author	Papamichos, E	en
dc.contributor.author	Larsen, I	en
dc.contributor.author	Ringstad, C	en
dc.date.accessioned	2014-03-01T01:19:28Z
dc.date.available	2014-03-01T01:19:28Z
dc.date.issued	2003	en
dc.identifier.issn	1365-1609	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/15518
dc.subject	Analytical Model	en
dc.subject	Constitutive Equation	en
dc.subject	Microstructures	en
dc.subject	Rayleigh Waves	en
dc.subject	Surface Wave	en
dc.subject	Higher Order	en
dc.subject.classification	Engineering, Geological	en
dc.subject.classification	Mining & Mineral Processing	en
dc.subject.other	Deformation	en
dc.subject.other	Elasticity	en
dc.subject.other	Nondestructive examination	en
dc.subject.other	Strain	en
dc.subject.other	Rayleigh wave propagation	en
dc.subject.other	Wave propagation	en
dc.subject.other	back analysis	en
dc.subject.other	elasticity	en
dc.subject.other	marble	en
dc.subject.other	microstructure	en
dc.subject.other	Rayleigh wave	en
dc.subject.other	rock mechanics	en
dc.subject.other	strain	en
dc.subject.other	wave propagation	en
dc.title	Rayleigh wave propagation in intact and damaged geomaterials	en
heal.type	journalArticle	en
heal.identifier.primary	10.1016/S1365-1609(03)00012-1	en
heal.identifier.secondary	http://dx.doi.org/10.1016/S1365-1609(03)00012-1	en
heal.language	English	en
heal.publicationDate	2003	en
heal.abstract	An analytical model of an elastically deforming geomaterial with microstructure and damage is assumed to be a material where the second spatial gradients of strain are included in the constitutive equations. Based on this assumption. a linear second gradient (or grade-2) elasticity theory is employed, to investigate the propagation of surface waves in either intact or cathered-although homogeneous and isotropic at the macroscale-materials with microstructure such as soils, rocks and rock-like materials. First, it is illustrated that in contrast to classical (grade-1) elasticity theory, the proposed higher-order elasticity theory yields dispersive Rayleigh waves, as it is also predicted by the atomic theory of lattices (discrete particle theory), as well as by viscoleasticity theory. Most importantly, it is demonstrated that the theory: (a) is in agreement with in situ non-destructive measurements pertaining to velocity dispersion of Rayleigh waves in monumental stones. and (b) it may be used for back analysis of the test data for the quantitative characterization of degree of surface cohesion or damage of Pendelikon marble of the Parthenon monument of Athens. (C) 2003 Elsevier Science Ltd. All rights reserved.	en
heal.publisher	PERGAMON-ELSEVIER SCIENCE LTD	en
heal.journalName	International Journal of Rock Mechanics and Mining Sciences	en
dc.identifier.doi	10.1016/S1365-1609(03)00012-1	en
dc.identifier.isi	ISI:000182391800003	en
dc.identifier.volume	40	en
dc.identifier.issue	3	en
dc.identifier.spage	377	en
dc.identifier.epage	387	en