Verification of falling weight deflectometer backanalysis using a dynamic finite elements simulation

Loizos, A; Scarpas, A

dc.contributor.author	Loizos, A	en
dc.contributor.author	Scarpas, A	en
dc.date.accessioned	2014-03-01T01:54:32Z
dc.date.available	2014-03-01T01:54:32Z
dc.date.issued	2005	en
dc.identifier.issn	10298436	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/27430
dc.subject	Backanalysis	en
dc.subject	Dynamic analysis	en
dc.subject	FE modeling	en
dc.subject	FWD	en
dc.subject	NDT	en
dc.subject	RLIT	en
dc.subject.other	Computer simulation	en
dc.subject.other	Computer software	en
dc.subject.other	Elastic moduli	en
dc.subject.other	Elasticity	en
dc.subject.other	Finite element method	en
dc.subject.other	Granular materials	en
dc.subject.other	Mathematical models	en
dc.subject.other	Nondestructive examination	en
dc.subject.other	Stiffness	en
dc.subject.other	Falling weight deflectometer (FWD)	en
dc.subject.other	Finite elements simulation	en
dc.subject.other	Material properties	en
dc.subject.other	Pavement material	en
dc.subject.other	Asphalt pavements	en
dc.title	Verification of falling weight deflectometer backanalysis using a dynamic finite elements simulation	en
heal.type	journalArticle	en
heal.identifier.primary	10.1080/10298430500141030	en
heal.identifier.secondary	http://dx.doi.org/10.1080/10298430500141030	en
heal.publicationDate	2005	en
heal.abstract	Falling weight deflectometer (FWD) testing is probably the most widely used device for the non-destructive testing of pavements. In many cases, engineers use the FWD test data for the estimation of pavement material properties, assuming a quasi-static approach. Since the verification of such results is often necessary, a dynamic finite element (FE) approach can be used towards this goal. Analytically, data provided by static backanalysis is used as input for 2D and 3D dynamic FE modeling of the FWD test in order to calculate the expected deflection bowl. Comparison of the measured with the calculated deflection bowl may provide a strong indication for the validation of the backanalysed data. Investigation of the application of this approach using field data from new and existing asphalt pavements with two different FWDs and several backanalysis programs as well as data of laboratory tested cores is also presented and discussed. © 2005 Taylor & Francis Group Ltd.	en
heal.journalName	International Journal of Pavement Engineering	en
dc.identifier.doi	10.1080/10298430500141030	en
dc.identifier.volume	6	en
dc.identifier.issue	2	en
dc.identifier.spage	115	en
dc.identifier.epage	123	en