ABSTRACT Dynamics of deformation and fracture is considered based on a field theoretical approach. The basic postulate of this approach is that deformation is always locally linear elastic, and that the nonlinear behavior in the plastic regime can be formulated by considering the interaction of these local dynamics. By requesting that the transformation matrix representing […]
Keywords: moire, holography, speckle methods, fringe analysis, digital image correlation Abstract There are a number of optical techniques that can be used to measure displacements on surfaces utilizing electromagnetic radiation. Moire, holography, speckle interferometry speckle photography, developed separately in the range of visible light. These techniques make it feasible is to find displacements fields and […]