Experimental Mechanics

, Volume 14, Issue 3, pp 118–122 | Cite as

Determination of the optically equivalent model in three-dimensional photoelasticity

The experimental determination of the three characteristic parameters, i.e., the characteristic retardation, the characteristic direction and the rotation, which describe the optical behavior of a three-dimensional photoelastic model is described
  • L. S. Srinath
  • A. V. S. S. S. R. Sarma


Any stressed photoelastic medium can be reduced to an optically equivalent model consisting of a linear retarder, with retardation δ1 and principal axis at azimuth φ1, and a pure rotator of power φ2. The paper describes two simple methods to determine these quantities experimentally. Further, a method is described to overcome the problem of rotational effects in scattered-light investigations. This new method makes use of the experimentally determined characteristic parameters.


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Copyright information

© Society for Experimental Mechanics, Inc. 1974

Authors and Affiliations

  • L. S. Srinath
    • 1
  • A. V. S. S. S. R. Sarma
    • 2
  1. 1.Indian Institute of ScienceBangaloreIndia
  2. 2.Indian Institute of TechnologyKampurIndia

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