Non Linear Rheology of Wormlike Micelles

  • A. Ponton
  • D. Quemada
Conference paper


The motivation of this study is a recent work of Porte et al. (1997) on shear induced inhomogeneous flows of solutions of giant micelles. The authors proposed a phenomenological analysis based on a effective potential that accounts for the free energy stored in a viscoelastic material under steady shear conditions. In such a scheme, mechanical flow instabilities have been described by a non-monotonic constitutive relation for the shear stress as a function of the shear rate. The model accounts for the existence of a stress plateau in which the set of stationnary states is highly degenerate in a shear rate controlled experiment. As a consequence, hysteresis is predicted but not observed experimentally.


Surfactant Salicylate Cetylpyridinium 


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Copyright information

© Springer-Verlag Berlin Heidelberg 1998

Authors and Affiliations

  • A. Ponton
    • 1
  • D. Quemada
    • 1
  1. 1.Laboratoire de Biorhéologie et d’Hydrodynamique Physico-chimique (L.B.H.P.), CNRS ESA 7057Univerité Paris VIIParis Cedex 05France

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