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Photoelastic Analysis of Edge Residual Stresses in Glass by the Automated Tint Plate Method

Authors

  • A. Ajovalasit,

    1. Dipartimento di Ingegneria Chimica, Gestionale, Informatica e Meccanica Viale delle Scienze, University of Palermo DICGIM, Palermo, Italy
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  • G. Petrucci,

    1. Dipartimento di Ingegneria Chimica, Gestionale, Informatica e Meccanica Viale delle Scienze, University of Palermo DICGIM, Palermo, Italy
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  • M. Scafidi

    Corresponding author
    1. Dipartimento di Ingegneria Chimica, Gestionale, Informatica e Meccanica Viale delle Scienze, University of Palermo DICGIM, Palermo, Italy
    • Correspondence

      M. Scafidi

      Dipartimento di Ingegneria Chimica

      Gestionale

      Informatica e Meccanica Viale delle Scienze

      University of Palermo DICGIM

      Palermo

      Italy

      Email: michele.scafidi@unipa.it

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Abstract

The analysis of residual stress in glass is usually carried out by means of photoelastic methods. This article considers the automation of the white light photoelastic method based on the use of a full-wave plate placed behind the glass plate. In particular, the method in based on the use of RGB photoelasticity in white light in conjunction with a full wave plate. The proposed method have been applied to the analysis of membrane residual stresses in tempered glass, showing that it can effectively replace manual methods of photoelastic analysis of residual stresses in glass when a low photoelastic retardation is present.

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