On the accuracy of elastic strain field measurements by Laue microdiffraction and high-resolution EBSD: a cross-validation experiment
PLANCHER ; PETIT ; MAURICE ; FAVIER ; SAINTOYANT ; LOISNARD ; RUPIN ; MARIJON ; ULRICH ; BORNERT ; MICHA ; ROBACH ; CASTELNAU
Type de document
ARTICLE A COMITE DE LECTURE REPERTORIE DANS BDI (ACL)
Langue
anglais
Auteur
PLANCHER ; PETIT ; MAURICE ; FAVIER ; SAINTOYANT ; LOISNARD ; RUPIN ; MARIJON ; ULRICH ; BORNERT ; MICHA ; ROBACH ; CASTELNAU
Résumé / Abstract
Determining the accuracy of elastic strain measurements in plastically deformed alloys is an experimental challenge. To develop a novel cross-validation procedure, a controlled elasto-plastic strain gradient was created in a stainless steel single crystal by four point bending deformation. The corresponding elastic strain field was probed, with an intragranular spatial resolution, in-situ by Laue microdiffraction and ex-situ by High Resolution EBSD. Good agreement is found for the two independent measurements and the predictions of a mechanical model, at plastic strains below 0.5 %. The accuracy of the measurements is estimated at 3.2 × 10 4
Source
Experimental mechanics, num. 3, pp. 483-492 p.
Editeur
Society for Experimental Mechanics
