An analysis method of whole field measurement of indyne flinges is presented.This method is based on three pattern phase-shift techniques.The obtained phase mapcorresponds to stresses components.Phase-shift indyne is ugh to determine stresses incomposite structure, in particular,the stresses at internal discontinuities and thedelaminating stresses. The comopite structure beam is liken as an illustrative example in thepoper, with particular attention given to the 3-D stress effects. It is demonstrated that the isodyne method allows the determination of the 3-D stress field in the composite structure.