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Optical Engineering

Photoelastic tomography for residual stress measurement in glass
Author(s): Hillar K. Aben; Andrei Errapart; Leo Ainola; Johan Anton
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Paper Abstract

The paper describes an algorithm of photoelastic tomography and its application for residual stress measurement in glass articles of complicated shape. The algorithm is based on a linearized solution of the equations of integrated photoelasticity. The problem of tensor field tomography is decomposed into several problems of scalar field tomography for normal stress components of the stress tensor. The method is implemented with an automated polariscope supplied with a rotary stage. Software for the control of tomographic measurements and for the calculation of the stress fields has been elaborated. Several examples illustrate application of the method.

Paper Details

Date Published: 1 September 2005
PDF: 8 pages
Opt. Eng. 44(9) 093601 doi: 10.1117/1.2047368
Published in: Optical Engineering Volume 44, Issue 9
Show Author Affiliations
Hillar K. Aben, Tallinn Univ. of Technology (Estonia)
Andrei Errapart, Tallinn Univ. of Technology (Estonia)
Leo Ainola, Tallinn Univ. of Technology (Estonia)
Johan Anton, Tallinn Univ. of Technology (Estonia)


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