Skip to main content
SpringerLink
Log in

New method for determining strain on the surface of a body with photoelastic coatings

Paper describes two methods by which photoelastic strips may be used to determine the surface stress. These methods are then compared with existing techniques, and advantages and disadvantages are discussed

  • Published:
Experimental Mechanics Aims and scope Submit manuscript

Abstract

An experimental method has been developed for determining the strains at all points on the surface of a structure. Narrow epoxy-resin strips on a thin film are cemented to the surface of the body under study. Photoelastic studies show that the birefringent pattern of these strips is dependent only on the longitudinal strain parallel to their axes. When the strips are used in conjunction with a continuous photoelastic coating, the surface strain can be determined at all points from direct observation of the fringe patterns.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Log in via an institution

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Similar content being viewed by others

References

  1. Drucker, D. C., “Photoelastic Separation of Principal Stresses by Oblique Incidence,”Inl. Appl. Mech., Trans. ASME,64,A161–164 (1942).

    Google Scholar 

  2. Drucker, D.C., “The Method of Oblique Incidence in Photoelasticity”,Proc. SESA,VIII (1) (1950).

  3. Timoshenko, S., Phil. Mag.,44,1014 (1922).

    Google Scholar 

  4. Duffy, J., “Effects of the Thickness of Birefringent Coatings”,Experimental Mechanics,1 (3),74–82 (1961).

    Article  Google Scholar 

  5. Post, D., andZandman, F., “The Accuracy of the Birefringent-coating Method for Coatings of Arbitrary Thickness,,1 (1),21–23 (1961).

    Article  Google Scholar 

Download references

Author information

Authors and Affiliations

  1. Bell Telephone Laboratories, Inc., Murray Hill, N. J.

    Richard O'Regan

Authors
  1. Richard O'Regan
    View author publications

    You can also search for this author in PubMed Google Scholar

Rights and permissions

Reprints and permissions

About this article

Cite this article

O'Regan, R. New method for determining strain on the surface of a body with photoelastic coatings. Experimental Mechanics 5, 241–246 (1965). https://doi.org/10.1007/BF02327147

Download citation

  • Issue Date:

  • DOI: https://doi.org/10.1007/BF02327147

Keywords

Search

Navigation