Abstract
The photoviscoelastic technique as an experimental viscoelastic analysis is very complicated. The FEM and other methods as numerical viscoelastic analyses are not always reliable. An experimental and numerical hybrid stress analysis for a viscoelastic body is proposed in this paper. In this hybrid method, the experimental photoviscoelastic birefringence and the numerical birefringence are compared for the purpose of confirming the reliability of numerical results of stress and strain in a viscoelastic body. As an example, the thermal stress generated in an epoxy resin beam cooled rapidly is analyzed by this hybrid method.
