作者: F. Rietsch , B. Bouette
DOI: 10.1016/0014-3057(90)90005-O
关键词: Strain rate 、 Activation energy 、 Thermodynamics 、 Yield (engineering) 、 Materials science 、 Polycarbonate 、 Nuclear magnetic resonance 、 Strain (chemistry) 、 Relaxation (NMR) 、 Stress–strain curve 、 Viscoelasticity
摘要: Abstract The compression yield stress behaviour of engineering polycarbonates in the glassy state has been investigated over a wide range strain rates (10−4–4500 sec−1) and temperatures (−40 to 60°). In this region, Ree-Erying Bauwens approach takes into account distribution two different relaxation times (α β). At high rate range, model provides evidence on secondary transition linking with β mechanical loss peak.