Abstract: A Linear CCD (change coupled device)automated measurement system and the stress analysis methods are presented in the present paper.The skeleton and the ordersof photoelastic fringes can be acquired rapidly,precisely and in real time by the system.The automatic stress analysis methods in the paper only uses a small amount ofknown data to analyze the stress precisely.

Key words: thermo-viscoelastic constitutive theory, non-Gaussian network model, finite deformation, simple shear deformation, non-equilibrium thermodynamics, photoelastic, CCD, automated polariscopes, stress analysis