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Application of holography to photoelasticity

Author reports that the two-beam holographic method may be used to record the birefrignent pattern of a standard two-dimensional photoelastic specimen

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Abstract

This paper discusses the exploratory application of holography to photoelasticity. It is shown that the two-beam holographic method may be used to record the birefringent pattern of a standard two-dimensional photoelastic specimen. A special type of polariscope is required. A discussion is presented of the various arrangements required to produce isochromatic, isoclinic, isopachic and combined isopachic and isochromatic fringe patterns. The three-dimensional nature of the holograph is utilized to separate the principal stresses by means of oblique incidence. Both normal- and oblique-incidence fringe patterns are recorded on a single hologram. A brief discussion of the extension to the dynamic case is presented.

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Authors and Affiliations

  1. Department of Aeronautics and Astronautics, University of Washington, Seattle, Wash

    M. E. Fourney (Research Assistant Professor)

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  1. M. E. Fourney
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Fourney, M.E. Application of holography to photoelasticity. Experimental Mechanics 8, 33–38 (1968). https://doi.org/10.1007/BF02326248

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  • DOI: https://doi.org/10.1007/BF02326248

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