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Residual stress analysis in an annular plate based on experimental data obtained from different techniques

A general approach providing the best possible results of approximation of experimentally measured data is discussed. It is based on simultaneous use of all information available for the problem in consideration. All experimental data obtained by moire interferometry technique and other measurement techniques may be used in analysis at the same time, as well as our theoretical knowledge about the problem. Smoothing of experimental data is done on physical bases. In the present paper, as a particular application of this concept, formulation of the problem of residual stress reconstruction in an annular plate under internal pressure using all data measured in the saw cut test is discussed.