Viscoelastic Response of a Solid Polymer after Yielding
The viscoelastic behavior of solid polymers after yielding has been recently the subject of some experimental studies. In particular both stress relaxation and constant force creep tests were performed in tension and in compression on Mylarl (a biaxially oriented polyethylene terephthalate manufactured by du Pont) and polymethylmetacrylate2 (Plexiglass) respectively; furthermore both tensile and compressive tests were carried out on polycarbonate Lexan3,4.
KeywordsViscoelastic Behavior Solid Polymer Stress Relaxation Curve Generalize Maxwell Model Deformation Proceeds
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