Experimental Mechanics

, Volume 7, Issue 7, pp 19A–22A | Cite as

The transfer-grid method, a practical Moiré stress-analysis tool

Grids are applied to any part within minutes by a transfer technique which does not require any special skills. An optical instrument for moiré-fringe production, remote from the part (no contact master) is described
  • Felix Zandman
Applications

Abstract

A practical and simple moiré stress-analysis technique is described. The grid is applied to any part by a transfer method, like a decal, not necessitating mechanical engraving or photoetching nor any special environmental care. The moiré fringes are observed remotely from the part without master contact. This is done through the use of a projection device and a master held in a plane where the projected image of the working grid is formed. Limitations of the method, as well as its applications, are discussed.

References

  1. 1.
    Theocaris, P. S., “The Moiré Method in Thermal Fields,”Experimental Mechanics 4 (8)223–231 (August 1964).Google Scholar
  2. 2.
    Sciammarella, C. A., “Thermal Stresses at High Temperatures in Stell Rings by the Moiré Method,”Experimental Mechanics 6 (5)235–243 (May 1966).Google Scholar

Copyright information

© Society for Experimental Mechanics, Inc. 1967

Authors and Affiliations

  • Felix Zandman
    • 1
  1. 1.Vishay Intertechnology, Inc.Malvern

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