Wyznaczanie płaskiego pola naprężenia z obrazu izodyn uzyskiwanych metodą światła rozproszonego

A new method of interpreting the image of isodynes has bsen shown. Using the image of isodynes, obtained experimently, and the equation of internal equilibrium it is possible to get the tensor of stress (in plane state) in any point of the image. The calculations can be automized. During the course of calculation the experimental data are equalized. Advantages, of the method as compared with other well known experimental and analytical – experimental methods used in photoelasticity, have been pointed out.