Performance analysis of the mesh-free random grid method for full-field synthetic strain measurements

Iliopoulos, AP; Michopoulos, JG; Andrianopoulos, NP

dc.contributor.author	Iliopoulos, AP	en
dc.contributor.author	Michopoulos, JG	en
dc.contributor.author	Andrianopoulos, NP	en
dc.date.accessioned	2014-03-01T02:11:56Z
dc.date.available	2014-03-01T02:11:56Z
dc.date.issued	2012	en
dc.identifier.issn	00392103	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/29973
dc.subject	digital imaging	en
dc.subject	displacement measurement	en
dc.subject	full-field strain measurement	en
dc.subject	hole specimen	en
dc.subject	material characterization	en
dc.subject	orthotropic	en
dc.subject	simulation	en
dc.subject.other	Digital imaging	en
dc.subject.other	Displacement measurements	en
dc.subject.other	Full-field strain measurement	en
dc.subject.other	hole specimen	en
dc.subject.other	material characterization	en
dc.subject.other	orthotropic	en
dc.subject.other	simulation	en
dc.subject.other	Computational mechanics	en
dc.subject.other	Elasticity	en
dc.subject.other	Sensitivity analysis	en
dc.subject.other	Specifications	en
dc.subject.other	Strain measurement	en
dc.title	Performance analysis of the mesh-free random grid method for full-field synthetic strain measurements	en
heal.type	journalArticle	en
heal.identifier.primary	10.1111/j.1475-1305.2010.00786.x	en
heal.identifier.secondary	http://dx.doi.org/10.1111/j.1475-1305.2010.00786.x	en
heal.publicationDate	2012	en
heal.abstract	In responding to the needs of the material characterization community, the recently developed mesh-free random grid method (MFRGM) has been exhibiting very promising characteristics of accuracy, adaptability, implementation flexibility and efficiency. To address the design specification of the method according to an intended application, we are presenting a sensitivity analysis that aids into determining the effects of the experimental and computational parameters characterizing the MFRGM in terms of its performance. The performance characteristics of the MFRGM are mainly its accuracy, sensitivity, smoothing properties and efficiency. In this paper, we are presenting a classification of a set of parameters associated with the characteristics of the experimental set-up and the random grid applied on the specimen under measurement. The applied sensitivity analysis is based on synthetic images produced from analytic solutions of specific isotropic and orthotropic elasticity boundary value problems. This analysis establishes the trends in the performance characteristics of the MFRGM that will enable the selection of the user controlled variables for a desired performance specification. © 2010 Blackwell Publishing Ltd.	en
heal.journalName	Strain	en
dc.identifier.doi	10.1111/j.1475-1305.2010.00786.x	en
dc.identifier.volume	48	en
dc.identifier.issue	1	en
dc.identifier.spage	1	en
dc.identifier.epage	15	en