Abstract
The digital photoelastic and finite element methods were combined to clarify the interfacial stresses predicted by Suhir's theories. A special casting procedure was employed to obtain a true bi-material structure such that the theoretical assumptions can be satisfied. Through the analysis, some behaviours of the interfacial stresses were clarified. Besides, the distributions of the thermal stresses in the adherends calculated by Suhir and Timoshenko's theories were also discussed.