Abstract:Abstract:The optical methods of Caustics, Photoelasticity and Isopachics for the evaluation of the stress intensity factors and the distribution of the principal stresses at a bi-material interface crack-tip, were proposed. The caustics, isochromatic and isopachic fringes are developed from the stress field which results from a stress function X(r, ). When the crack-tip, which is perpendicular to interface, is at the interface of the bi-material, the caustics, isochromatic and isopachic fringes depend on the p… Show more
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