On the analysis of heat haze effects with spacetime DIC

Abstract : Long image series (i.e., movies) can be analyzed via digital image correlation (DIC) techniques. A new spacetime implementation is introduced to extend instantaneous DIC with minimal implementation complexity. With this procedure, a denoised reference image is built considering a series of more than 200 images. Such spacetime approach is very interesting when high temperature experiments are performed since it provides a very effective temporal regularization. The analysis of heat haze effects is carried out on a thermomechanical test in which the sample made of ceramic matrix composite is subjected to temperatures greater than 1,200°C in the heat affected zone of the laser beam. It is shown that the addition of a small fan reduces the spurious displacement fluctuations.
Type de document :
Article dans une revue
Optics and Lasers in Engineering, Elsevier, 2018, 111, pp.135-153. 〈10.1016/j.optlaseng.2018.06.004〉
Liste complète des métadonnées

Littérature citée [39 références]  Voir  Masquer  Télécharger

https://hal.archives-ouvertes.fr/hal-01809213
Contributeur : François Hild <>
Soumis le : mercredi 6 juin 2018 - 15:05:18
Dernière modification le : jeudi 15 novembre 2018 - 08:39:00
Document(s) archivé(s) le : vendredi 7 septembre 2018 - 14:00:19

Fichier

OLE2018-ccsd.pdf
Fichiers produits par l'(les) auteur(s)

Identifiants

Citation

Myriam Berny, Thibaut Archer, Anne Mavel, Pierre Beauchêne, Stéphane Roux, et al.. On the analysis of heat haze effects with spacetime DIC. Optics and Lasers in Engineering, Elsevier, 2018, 111, pp.135-153. 〈10.1016/j.optlaseng.2018.06.004〉. 〈hal-01809213〉

Partager

Métriques

Consultations de la notice

128

Téléchargements de fichiers

143