Abstract
This work deals with the development of a full-field extensometric method at a micrometric scale in order to precisely identify the local features of a metallic alloy at the scale of the grain. The full-field method that has been chosen is the grid method that applies a spatial phase-shifting algorithm to a periodic pattern. To mark the sample, the direct interferometric photolithography is used. First, the influent parameters of this technique have been optimized for a digitization of the signal thanks to a white-light interferometric microscope. Measurements of rigid-body motion have been carried out and have revealed parasitic effects that one had to understand and treat. The first mechanical tests are finally introduced.
