The compression yield behaviour of polycarbonate over a wide range of strain rates and temperatures

作者: F. Rietsch , B. Bouette

DOI: 10.1016/0014-3057(90)90005-O

关键词: Strain rateActivation energyThermodynamicsYield (engineering)Materials sciencePolycarbonateNuclear magnetic resonanceStrain (chemistry)Relaxation (NMR)Stress–strain curveViscoelasticity

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.

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