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Communication Dans Un Congrès Année : 2007

Full 3D strain measurement by digital volume correlation from X-ray computed and optical scanning tomographic images

Résumé

Digital Volume Correlation (DVC) which is the 3D extension of DIC technique allows us to determine the full 3D strain tensor and to analyse 3D mechanical phenomena in the core of materials or structures without hypothesis on the strain kinematic formulation nor using a numerical simulation. Nevertheless, DVC needs volume images which contain a 3D random distribution of grey levels following displacements of material. In this study, we present 3D measurements with images from Xray Micro-Computed Tomography (XμCT) and Optical Scanning Tomography (OST). In order to define the fields of application of both techniques, we show their performances and we evaluate their measurement uncertainty in the cases of rigid body translations and a homogeneous strain test.

Dates et versions

hal-00240279 , version 1 (06-02-2008)

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Citer

Arnaud Germaneau, Pascal Doumalin, Jean-Christophe Dupré. Full 3D strain measurement by digital volume correlation from X-ray computed and optical scanning tomographic images. 13th International Conference on Experimental Mechanics, Jul 2007, Alexandroupolis, Greece. pp.553-554, ⟨10.1007/978-1-4020-6239-1_274⟩. ⟨hal-00240279⟩

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