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Proceedings Paper

Cases of weak and strong birefringence in integrated photoelasticity
Author(s): Hillar K. Aben; Juri Josepson; Alfred E. Puro
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Paper Abstract

General algorithm of integrated photoelasticity is complicated and leads to nonlinear relationships between the stress components and measurement data. It is shown that effective algorithms for determining completely the axisymmetric state of stress and for measuring normal stress distribution in an arbitrary 3-D model, can be constructed if birefringence is weak. In the case of strong birefringence stresses can be determined only if rotation of the principal stress axes is absent or weak. In the general case of strong birefringence curious optical phenomena take place and integrated fringe pattern becomes ambiguous.

Paper Details

Date Published: 10 June 1996
PDF: 6 pages
Proc. SPIE 2791, Photomechanics '95, (10 June 1996); doi: 10.1117/12.242085
Show Author Affiliations
Hillar K. Aben, Institute of Cybernetics (Estonia)
Juri Josepson, Institute of Cybernetics (Estonia)
Alfred E. Puro, Institute of Cybernetics (Estonia)

Published in SPIE Proceedings Vol. 2791:
Photomechanics '95
M. Kh. Akhmetzyanov; S. I. Gerasimov; K. L. Komarov, Editor(s)

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