Mechanical and optical characterization of a photoviscoplastic material

摘要

AbstractThe mechanical and optical properties of a polyester blend over a wide range of strain rates has been investigated for loading and unloading. The mechanical behavior, while being complex, was modeled adequately with a generalization of the four‐parameter viscoelastic model. The optical behavior has at least a three‐phenomenological coefficient dependence on the mechanical variables. Further, the stress birefringence is of opposite sign to that of the deformat