Photoelastic stamping analysis

Details Photoelastic stamping analysis Photoelastic stamping analysis

1976-05-10

1978-08-29

Gill, James J.

Measuring and testing

Ductility or brittleness

356 34, G01N 328, G01B 1118

Patent

active

041095154

ABSTRACT:
There is disclosed a method of analyzing formability, strain level, or a related physical characteristic of a given material for a blank which is formed into a desired shape comprising: providing a blank of said given material; applying a flowable photoelastic coating directly on a selected surface area of the blank which is to be analyzed and allowing the coating to cure; forming the blank into the desired shape, and subjecting the coating to analysis. Also disclosed is a novel calibration technique for quantitatively analyzing strain in the plastic region of the metal.

REFERENCES:
patent: 3034395 (1962-05-01), Zandman
patent: 3847481 (1974-11-01), Paraskevas
"Brush-on Coatings Can Brighten Up Stress Analysis," from The Engineer, Jun. 8, 1972, pp. 30, 31.
"Observation on Deformation Behaviors in Autobody Panel by Photoelastic Coating Methods," by Abe et al., cited in SAE Paper 760,205, Oct. 1972.

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