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Article Dans Une Revue Journal de Physique Colloques Année : 1981

INTERNAL FRICTION OF GLASSY POLYCARBONATE DURING PLASTIC FLOW

J. Parisot
  • Fonction : Auteur
J. Astier
  • Fonction : Auteur
Arnaud Fernandez
  • Fonction : Auteur
O. Rafi
  • Fonction : Auteur

Résumé

We have measured internal friction of polycarbonate in torsion, during i) a constant strain-rate tensile test ; ii) a differential strain-rate test ; iii) several relaxation tests. We show that internal friction is strongly dependent on strain rate [MATH], but independant on strain and stress. Polycarbonate behaviour shows some analogies with metals : therefore interpretation of the results is based upon the assumption that deformation in due to defects motions. In this view, internal friction can provide means for estimating internal stress.

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jpa-00221130 , version 1 (04-02-2008)

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J. Parisot, J. Astier, Arnaud Fernandez, O. Rafi. INTERNAL FRICTION OF GLASSY POLYCARBONATE DURING PLASTIC FLOW. Journal de Physique Colloques, 1981, 42 (C5), pp.C5-569-C5-574. ⟨10.1051/jphyscol:1981587⟩. ⟨jpa-00221130⟩

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