Artifact Correction for DVC Measurements Using a Laboratory X-Ray Source
The effects of temperature elevation of the X-ray tube of a lab tomograph during image acquisition are analyzed in terms of their induced biases for Digital Volume Correlation (DVC) from a series of reconstructed volumes acquired successively. Spurious dilatational strains are induced by temperature variations in the tomograph. If not accounted for, any quantitative kinematic measurement is impossible for strain levels below 0.5%. When corrected, it is possible to determine the elastic parameters of nodular graphite cast iron.
KeywordsStress Intensity Factor Cast Iron Displacement Field Graphite Nodule Reconstructed Volume
This work was funded under the grant ANR-09-BLAN-0009-01 (RUPXCUBE Project).
- 1.Baruchel J, Buffière JY, Maire E, Merle P, Peix G (2000) X-ray tomography in material sciences. Hermes Science, ParisGoogle Scholar
- 2.Bernard D (ed) (2008) In: Proceedings of the 1st conference on 3D-imaging of materials and systems 2008, BordeauxGoogle Scholar
- 8.Dierickx P (1996) Etude de la microstructure et des mecanismes d’endommagement de fontes G.S. ductiles: influence des traitements thermiques de ferritisation. Ph.D. thesis, INSA de LyonGoogle Scholar