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Journal of Elasticity

, Volume 85, Issue 1, pp 45–63 | Cite as

On Poisson’s Ratio in Linearly Viscoelastic Solids

  • R. S. LakesEmail author
  • A. Wineman
Article

Abstract

Poisson’s ratio in viscoelastic solids is in general a time dependent (in the time domain) or a complex frequency dependent quantity (in the frequency domain). We show that the viscoelastic Poisson’s ratio has a different time dependence depending on the test modality chosen; interrelations are developed between Poisson’s ratios in creep and relaxation. The difference, for a moderate degree of viscoelasticity, is minor. Correspondence principles are derived for the Poisson’s ratio in transient and dynamic contexts. The viscoelastic Poisson’s ratio need not increase with time, and it need not be monotonic with time. Examples are given of material microstructures which give rise to designed time dependent Poisson’s ratios.

Mathematics Subject Classifications (2000)

P21018 C32070 T15001 

Key words

Poisson’s ratio linearly viscoelastic solids correspondence principle time dependence frequencey dependence 

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Copyright information

© Springer Science + Business Media B.V. 2006

Authors and Affiliations

  1. 1.Department of Engineering Physics, Engineering Mechanics ProgramUniversity of Wisconsin – MadisonMadisonUSA
  2. 2.Department of Mechanical EngineeringUniversity of MichiganAnn ArborUSA

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