Abstract
Residual stresses in axisymmetric glass containers are mostly measured with integrated photoelasticity. However, many containers, e.g. cosmetic bottles and bottles of expensive alcoholic drinks, often have a non-axisymmetric form. In this paper we consider residual stress measurement in such containers with a modified integrated photoelasticity technique, with the scattered light method and with a simple method of surface stress measurement.
Highlights
Residual stress is one of the most important characteristics of glass articles from the point of view of their strength and resistance
Residual stresses in axisymmetric glass containers are mostly measured with integrated photoelasticity
This paper considers the application of integrated photoelasticity, a simple method of surface stress measurement [5], a scattered light method [6,7,8] and a simplified photoelastic tomography for the determination of stresses in non-axisymmetric containers
Summary
Residual stress is one of the most important characteristics of glass articles from the point of view of their strength and resistance. Stresses in glass articles of axisymmetric shape (bottles, drinking glasses, tubes, fibres and fibre preforms, electric lamps) are mostly determined with integrated photoelasticity [1,2]. Determination of 3D stress fields in general in these articles requires application of photoelastic tomography [3,4]. This paper considers the application of integrated photoelasticity, a simple method of surface stress measurement [5], a scattered light method [6,7,8] and a simplified photoelastic tomography for the determination of stresses in non-axisymmetric containers.
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