RGB photoelasticity applied to the analysis of membrane residual stress in glass

Author: Ajovalasit A   Petrucci G   Scafidi M  

Publisher: IOP Publishing

ISSN: 0957-0233

Source: Measurement Science and Technology, Vol.23, Iss.2, 2012-02, pp. : 25601-25608

Disclaimer: Any content in publications that violate the sovereignty, the constitution or regulations of the PRC is not accepted or approved by CNPIEC.

Previous Menu Next

Abstract

The measurement of residual stresses is of great relevance in the glass industry. The analysis of residual stress in glass is usually made by photoelastic methods because glass is a photoelastic material. This paper considers the determination of membrane residual stresses in glass plates by automatic digital photoelasticity in white light (RGB photoelasticity). The proposed method is applied to the analysis of membrane residual stresses in some tempered glass. The proposed method can effectively replace manual methods based on the use of white light, which are currently provided by some technical standards.