Developments in RGB Photoelasticity
In this paper the combined use of both RGB and phase stepping photoelasticity is proposed. The method is characterised by the following features: maximum measurable order greater than that of the RGB method, ability to determine the total fringe order without necessity of unwrapping.
J.M. Dulieu-Barton and S. Quinn
A. Ajovalasit and G. Petrucci, "Developments in RGB Photoelasticity", Applied Mechanics and Materials, Vols. 3-4, pp. 205-210, 2005