SYMPOSIA PAPER Published: 01 January 1961
STP44358S

Maximum Shear Strain Measurements and Determination of Initial Yielding by the Use of the Photoelastic Coating Technique

Source

The photoelastic coating technique of experimental stress analysis is a valuable extension of conventional photoelasticity. Whereas photoelasticity ordinarily employs models of structural and machine parts under simulated loading conditions, the photoelastic coating method employs the prototype part itself, usually under actual operating conditions. When a part is coated with a photoelastic resin of high strain-optical sensitivity and subjected to its working loads, the coating follows the surface deformations of the part. The deformed coating then behaves as a photoelastic specimen and reveals the distribution of surface strains throughout the part.

Author Information

Zandman, Felix
Instruments Division, The Budd Co., Phoenixville, Pa.
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Details
Developed by Committee: E01
Pages: 3–14
DOI: 10.1520/STP44358S
ISBN-EB: 978-0-8031-5960-0
ISBN-13: 978-0-8031-6114-6