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Influence of End Constraint in the Testing of Anisotropic Bodies

  • N. J. Pagano
  • J. C. Halpin
Part of the Solid Mechanics and Its Applications book series (SMIA, volume 34)

Abstract

One of the most elementary concepts in elasticity theory is that of a uniform state of stress. Producing such a state of stress in the laboratory, however, is not a trivial task. A common experiment in composite mechanics — the tension test of off-angle composites — is discussed in this paper and the influence of end constraint on the uniform stress field is investigated. Analytical and experimental evidence is presented to show the serious effects caused by conventional clamping devices.

Keywords

Longitudinal Strain Uniform State Displacement Boundary Condition Composite Behavior Compliance Coefficient 
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References

  1. 1.
    S. G. Lekhnitskii, Theory of Elasticity of an Anisotropie Elastic Body, Holden-Day (1963).Google Scholar
  2. 2.
    S. W. Tsai, “Mechanics of Composite Materials,” Air Force Materials Laboratory Technical Report AFML-TR-66–149, Part I (1966).Google Scholar
  3. 3.
    J. C. Halpin and N. J. Pagano, “Observations on Linear Anisotropie Viscoelasticity,” J. Composite Materials, Vol. 2 (1968), p. 68.CrossRefGoogle Scholar

Copyright information

© Springer Science+Business Media Dordrecht 1994

Authors and Affiliations

  • N. J. Pagano
    • 1
  • J. C. Halpin
    • 1
  1. 1.Nonmetallic Materials Division Air Force Materials LaboratoryWright-Patterson AFBUSA

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