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Journal of Materials Science

, Volume 29, Issue 13, pp 3430–3432 | Cite as

A method of determining the shear modulus and Poisson's ratio of polymer materials

  • C. M. Migwi
  • M. I. Darby
  • G. H. Wostenholm
  • B. Yates
  • M. Moss
  • R. Duffy
Article

Abstract

An experimental method is described which allows the shear modulus and Poisson's ratio of a polymer material to be determined as functions of temperature. Using commercial thermal mechanical analysis equipment, measurements are required of the thermal expansion coefficients of both unconstrained and constrained specimens, and of the Young's modulus. The constraint on a small disc-shaped polymer specimen is applied by a copper annulus. The basis of the method is that the apparent thermal expansion of the constrained specimen depends on the Poisson effect, and an analysis is given which enbles the Poisson's ratio to be determined. Some illustrative results are presented for a silicon rubber.

Keywords

Polymer Copper Silicon Rubber Thermal Expansion 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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References

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    M. Crooke, “Adv Compos Engng” (Design Council, London, 1992) p. 10.Google Scholar
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    M. Foston and R. C. Adams, “Elastomeric Tooling, Engineering Materials Handbook”, Vol. 1, Composites (ASM International, 1987) p. 590.Google Scholar
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    S. P. Timoshenko and J. N. Goodier, “Theory of Elasticity”, 3rd Edn, (McGraw Hill, London, 1982) pp. 433–452.Google Scholar
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    M. E. Williams, M. I. Darby, G. H. Wostenholm, B. Yates, R. Duffy and M. Moss, J. Mater. Sci. 28 (1993) 2815.CrossRefGoogle Scholar

Copyright information

© Chapman & Hall 1994

Authors and Affiliations

  • C. M. Migwi
    • 1
  • M. I. Darby
    • 1
  • G. H. Wostenholm
    • 1
  • B. Yates
    • 1
  • M. Moss
    • 2
  • R. Duffy
    • 2
  1. 1.Department of Pure and Applied PhysicsUniversity of SalfordSalfordUK
  2. 2.British Aerospace (Military Aircraft Limited)Balderstone, BlackburnUK

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