Applying photoelasticity technique in models subject to bending

Photoelasticity technique allows us to analyze pressu­res in any system from single to complex geometries. A team called polariscopic, a beam of polarized light passing through a photoelastic model, forms the physi­cal principie that allows us to perform this analysis. This model is subjected to external loads; by the action of the light beam bands of different colors can be obser­ved, where in each color defines a stress level. For our case, a small beam subject to bending loads is analyzed; a model based on gelatin, glycerin and water; was used, which has yielded good results in terms of the appreciation of color bands.