Consistency Relations for Double-Step Strain Experiments

J. S. Vrentas, C. M. Vrentas, D. C. Venerus

Research output: Contribution to journalArticlepeer-review

7 Scopus citations


Consistency relations for double-step strain deformations are formulated and applied in the evaluation of proposed constitutive models for nonlinear viscoelastic behavior. Two important double-step deformations are used to evaluate three constitutive models: the Doi-Edwards model without the independent alignment approximation, an integral viscoanelastic model, and a strain-coupling model. Comparison of the consistency relations for the Doi-Edwards and viscoanelastic models with double-step shear stress data showed that there may be important deficiencies in these models. The shear stress data were in reasonable accord with the consistency relation for the strain-coupling constitutive equation.

Original languageEnglish (US)
Pages (from-to)5133-5136
Number of pages4
Issue number24
StatePublished - 1990

All Science Journal Classification (ASJC) codes

  • Organic Chemistry
  • Polymers and Plastics
  • Inorganic Chemistry
  • Materials Chemistry


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