Three molecular theories are used to predict the yield behavior of amorphous polymers for a wide range of temperatures and strain rates. These include the state transition theory of Ree-Eyring, the conformational change theory of Robertson and the disclinations theory of Argon. For each of these models, the yield stress behavior of polymethylmethacrylate (PMMA) is described over a wide range of strain rates and temperatures. According to experimental values for polycarbonate (PC), the Ree-Eyring model seems to be the suitable theory at high strain rates for the prediction of the yield stress of amorphous polymers.
|Number of pages||6|
|Journal||Journal De Physique. IV : JP|
|Publication status||Published - Sep 2003|
|Event||Eurodymat 2003: 7th International Conference on Mechanical and Physical Behaviour of Materials under Dynamic Loading - Porto, Portugal|
Duration: 8 Sep 2003 → 12 Sep 2003
ASJC Scopus subject areas
- Physics and Astronomy(all)