Determination of all stress tensor components on object surfaces using a holographic interferometer

摘要

A new theoretical-experimental approach for determining all the components of stress tensor on the surface of the object was proposed. The components of displacement vector are determined in the given area of the surface using holographic interferometry methods, basing on the experimental measurements. Applying linear approximation to the displacements in the given area, one can determine all the components of displacement vector by executing calculations, which are easy to perform. Stress evaluation methodology has passed through the tests for known analytical solutions.