Optical interferometry in mechanics of solids

摘要

The presented paper deals with the usefulness, applicability, effectiveness and other aspects of the exploitation of laser interferometry and holographic/speckle interferometry optical setups in the field of experimental mechanics. By describing of several examples an incomplete review is given about the basic principles of these "classic" optical techniques. The basic optical schemes are described and a few interferograms, obtained at the testing experiments with mechanically loaded structural elements, are presented. Also, the evaluating principles of the stress state are presented, which are as a rule inevitable when solving the problems in mechanics of solids.