A NOTE ON STRESS-ANALYSIS AND STRAIN-ANALYSIS FOR MATERIALS WITH DIFFERENT ELASTIC-MODULUS AND A PHOTOELASTIC SOLUTION OF THE STRESS STATE FOR POINTS ON THE INTERFACE

Based on stress function theory, this paper presents a stress analysis of the common boundary area of materials of different elastic moduli. In addition, a new experimental method for the solution of the stress state of points on the common boundary plane of a three-dimensional p hotoelastic model with materials of different elastic moduli is propos ed. An experimental solution of the stress tensor is obtained by the c ontinuous conditions of deformation on the interface, the relationship s between stress and strain, the stress-optics law, and the oblique-in cidence method. (C) 1997 Published by Elsevier Science S.A.