Development of Optical Technique For Measuring Kinematic Fields in Presence of Cracks, FIB-SEM-DIC

Currently, kinematic field measurements for studying the mechanical behavior of materials and structures use common optical methods, such as mark tracking techniques, grid methods and correlation techniques (Sutton et al., 2009, Image correlation for shape, motion and deformation measurements, Springer, Berlin, https://doi.org/10.1007/978-0-387-78747-3). These techniques are used over a region of interest ranging from micro to millimeter scale. However, when studies need to be conducted on even smaller scales such as sub-micrometric scale, the use of more complex means of observation is required. In this case the work can be achieved using the scanning electron microscope SEM, or some specific marking techniques as the Dual-Beam FIB [ANR-11-LABX-0017-01].