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International Journal of Optics
Volume 2011, Article ID 215404, 7 pages
Research Article

Stress Analysis in Glass Artwork

1Laboratório de Óptica Lasers e Sistemas, Departamento de Física, Faculdade de Ciências da Universidade de Lisboa, Campus do Lumiar, Estrada do Paço do Lumiar, 22, Building D, 1649-038 Lisbon, Portugal
2Vidro e Cerâmica para as Artes (VICARTE), Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal
3Departamento de Pintura, Faculdade de Belas Artes da Universidade do Porto, Avenida Rodrigues de Freitas, 265, 4049-021 Porto, Portugal
4Departamento de Comunicação e Arte, Universidade de Aveiro, Campos Universitário de Santiago, 3810-193 Aveiro, Portugal

Received 24 September 2010; Accepted 11 March 2011

Academic Editor: Chenggen Quan

Copyright © 2011 João M. P. Coelho et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


A simple method for determining the stress fields in transparent glass artwork pieces is presented. The proposed method is based on the principles of photoelasticity combining imaging and quantitative measures with an image processing algorithm. The main goal was to develop a methodology to help glass artists to determine the ability of their work to resist the thermal shocks by giving them a hazard map based on the stress map of the glass piece.