This website presents information about IoC as of 31 December 2016 and is no longer updated.
Laboratory of Photoelasticity
Head: Johan Anton, phone +372 620 4182 http://www.ioc.ee/plab
Secretary: Pilvi Veeber, phone +372 620 4181
In more than 50 years the Laboratory of Photoelasticity has developed theory, methods and measurement technology for determining residual stresses in glass articles of complicated shapes. This technology, photoelastic tomography, is implemented in the automated polariscope AP, accompanied with intelligent algorithms for measuring residual stresses in drinking glasses, bottles, electric lamps, optical fibre preforms, cathode-ray tubes, etc. To measure residual stresses in architectural glass panels and automotive glazing a polariscope SCALP, based on the scattered light method, has been developed. This this measurement methodology is used in many glass factories all over the world provided by the company created on the basis of the laboratory, GlasStress Ltd. By now over a hundred polariscopes measuring residual stresses in glass have been sold.
Main research areas
- integrated photoelasticity,
- photoelastic tomography,
- hybrid mechanics,
- methods for determining residual stresses in glass.
Selected publications
- H. Aben. Integrated Photoelasticity. McGraw-Hill, New York, 1979.
- H. Aben, C. Guillemet Photoelasticity of Glass. Springer, Berlin, 1993.
- H. Aben, L. Ainola, J. Anton, A. Errapart. Photoelastic tomography for residual stress measurement in glass. Opt. Eng., 2005, 44, 093601