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Nonlinear photoviscoelasticity: Theory and measurement |
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| Authors: | A Tougui D Gamby A Lagarde H F Brinson |
| Institution: | 1. Université Cadi-Ayyad, Marrakech, Morocco 2. Laboratoire de Mécanique des Solides, Universite de Poitiers, 40 Avenue du Recteur Pineau, 86022, Poitiers, Cedex, France 3. Department of Engineering Science and Mechanics, Virginia Polytechnic Institute and State University, 24061, Blacksburg, VA |
| Abstract: | Photoviscoelasticity and photoplasticity concepts are reviewed and differences and similarities are discussed. The suggestion is made that a better understanding of nonlinear-time-varying birefringence enhances the utilization of polymeric materials for photoplasticity studies. A mathematical model for nonlinear photoviscoelasticity is presented. Measurements of optical creep and creep recovery are given and comparisons between theory and experiments are made and discussed. |
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