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Journal of Materials Science

, Volume 43, Issue 4, pp 1191–1199 | Cite as

Deformation response and constitutive modeling of vinyl ester polymer including strain rate and temperature effects

  • Atousa Plaseied
  • Ali FatemiEmail author
Article

Abstract

The deformation behavior of vinyl ester polymer under monotonic tensile loading is characterized and modeled. The Standard Linear Solid model, which is a physical model, was used and modified to represent the stress–strain behavior of this polymer over a wide range of strain rates and temperatures. This model was also used to predict the stress-relaxation and short-term creep behavior of this material. The comparisons between the predictions and experimental data from tensile and relaxation tests demonstrate that this model can represent the deformation behavior of the material reasonably well.

Keywords

Strain Curve Deformation Behavior Constant Strain Rate Relaxation Test Vinyl Ester 

Nomenclature

a, b, c, d

Material’s constants

E

Monotonic modulus of elasticity

E1, E2

Spring moduli

m

Material’s constant

T

Operating temperature

t

Time

Tg

Glass transition temperature

Tr

Room temperature

δ

Displacement

ε

True strain

\( \dot \varepsilon \)

Strain rate

ε0

Viscoelastic strain

η

Viscosity

η0

Initial viscosity

σ

True stress

\( \dot \sigma \)

Rate of applied stress

σ0

Initial stress at relaxation

σe

Equilibrium stress

σv

Viscoelastic stress

Notes

Acknowledgements

Financial support for this research was provided by Army Research Office (ARO) Grants submitted under DAAD19-03-1-0012 and DAAD19-03-R-0017. The help on this project from the program managers at the Army, Dr. David Stepp and Dr. Mark VanLandngham, is acknowledged. We also thank Dr. Abdy Afjeh and Dr. Maria Coleman for their help and contributions to this project.

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Copyright information

© Springer Science+Business Media, LLC 2007

Authors and Affiliations

  1. 1.Department of Mechanical EngineeringUniversity of ColoradoBoulderUSA
  2. 2.Department of Mechanical, Industrial and Manufacturing EngineeringThe University of ToledoToledoUSA

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