DEVICE FOR DETERMINING THE LOCAL MECHANICAL BEHAVIOR OF A TEST OF MATERIAL

摘要

The invention relates to a device (11) for determining the local mechanical behavior of a specimen of material (18), comprising a unit (10) called video-traction, comprising: - means (29) of mechanical stressing specimen, means (23) for video recording the displacement of a plurality of point markers (46) arranged on the specimen (18), and - means (28) for interpolation of recorded displacements, suitable for providing the local deformation of the specimen in real time, - a Raman spectrometer (12) comprising acquisition means (36) and means (40) for processing a Raman spectrum in a region for which the local deformation of the specimen is provided, and means (42) for interaction between the video-traction unit (10) and the Raman spectrometer (12).