Method and device for the measurement of photoelasticity

Optics: measuring and testing – Material strain analysis – With polarized light

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356 35, 356339, G01B 1118, G01J 400

Patent

active

041926102

ABSTRACT:
At least four beams of linearly polarized light are produced separately at one and the same point of measurement in a single direction of observation at right angles to a unitary sheet of a specimen of photoelastic material in order to determine the state of mechanical stress in the plane of the sheet.

REFERENCES:
patent: 3589812 (1971-06-01), Robert et al.
patent: 3902805 (1975-09-01), Redner

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