Photoelasticity of Thermal Stresses and Temperature Measurement of Glass Under Non-uniform Heating

Photoelasticity of Thermal Stresses and Temperature Measurement of Glass Under Non-uniform Heating PDF Author: Che Hui Pok
Publisher:
ISBN:
Category : Glass
Languages : en
Pages : 200

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Photoelasticity of Thermal Stresses and Temperature Measurement of Glass Under Non-uniform Heating

Photoelasticity of Thermal Stresses and Temperature Measurement of Glass Under Non-uniform Heating PDF Author: Che Hui Pok
Publisher:
ISBN:
Category : Glass
Languages : en
Pages : 200

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Photoelasticity of Thermal Stresses and Temperature Measurement of Glass Under Thermal Stress

Photoelasticity of Thermal Stresses and Temperature Measurement of Glass Under Thermal Stress PDF Author: Kin Yit Lee
Publisher:
ISBN:
Category : Glass
Languages : en
Pages : 154

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Photothermoelasticity Techniques and Application

Photothermoelasticity Techniques and Application PDF Author: Warren E. Greenwald
Publisher:
ISBN:
Category : Photoelasticity
Languages : en
Pages : 28

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Photoelasticity of Glass

Photoelasticity of Glass PDF Author: Hillar Aben
Publisher: Springer Science & Business Media
ISBN: 3642500714
Category : Technology & Engineering
Languages : en
Pages : 259

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Book Description
Glass is the oldest man-made material. Its invention about five thousand years ago should be considered as one of the crucial events in the history of mankind. Glass has given man the possibility to have daylight in his protected living environment and to compensate the defects of his sight. Glass containers and tableware have played and still play an important role in man's everyday life. Glass elements in microscopes and telescopes have given us the possibility to learn the secrets of micro- and macrocosm. Glass participates in the most sophisticated technologies: glass fibers have caused a revolution in telecommunication, glass is used as a material for many modern electronic devices. Although nowadays plastics often make a strong competition to glass, for many applications glass is still the best material due to its specific properties - its hardness, good transparency, resistance to chemicals, the easiness to shape glass articles, feasibility to change the composition of the glass in order to meet new specific demands, etc. Two peculiarities of glass should be pointed out. The first is the fragility of glass - it breaks easily due to tensile stresses. The second is the fact that in every glass item there exist residual stresses due to the complicated technological process during which glass from the state of a viscous liquid at high temperature turns into solid state, while cooled down.

Photoelasticity of Glass Under Thermal Stress

Photoelasticity of Glass Under Thermal Stress PDF Author: Fook Joo Teoh
Publisher:
ISBN:
Category :
Languages : en
Pages : 200

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Photoelasticity of Glass

Photoelasticity of Glass PDF Author: Hillar Aben
Publisher:
ISBN: 9783642500725
Category :
Languages : en
Pages : 272

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Book Description
This book presents a sytematic approach to contemporary phototelasticity with particular emphasis on stress analysis in glass. A review of different kinds of residual stresses in glass is presented. Besides traditional photoelastic techniques, differential refractrometry for stress determination on the surface of flat glass and integrated photoelasticity for stress determination in glass articles ofcomplicated shape are considered in detail. Original photoelastic apparatus and corresponding measurement techniques as well as stress calculation algorithms are described. Many practical examples illustrate the possibilities of modern photoelasticity for stress measurement in flat glass, containers, tumblers, tubes, optical fibres and fibre performs etc. The book can be considered as a textbook for a specialist in glass industry who wants to check the quality of products or tries to optimize theproduction process parameters from the point of view of the residual stresses. Furthermore, the book gives a number of new nondestructive methodswhich have not been described in earlier books on photoelasticity.

Basic Optical Stress Measurement in Glass

Basic Optical Stress Measurement in Glass PDF Author: H. W. McKenzie
Publisher:
ISBN: 9780900682278
Category : Science
Languages : en
Pages : 100

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Book Description
During the manufacture of all glass products, both temporary and residual stresses develop. Such stresses arise as a consequence of the manufacturing processes and for proper process control to be exercised it is necessary to be able to quantify these stresses. The optical method of experimental stress analysis, known as photoelasticity, has been used very effectively in the evaluation of the stresses occurring in structures of varying complexity, together with their components, when subjected to specified loading conditions. As the photoelastic technique requires materials that are both transparent and birefringent and many glasses exhibit these properties, this method of analysis can be used to determine the stresses in glass products. There are many texts dealing with photoelastic analysis and its applications, but they are not aimed specifically at the assessment of residual stresses in glasses. This publication offers a practical guide providing information on the various optical arrangements and interpretation of results from typical plant apparatus, it is of general interest to those making stress measurements within the glass industry. There is a survey of the available methods and an outline of the application of these techniques to the various measurements which have to be made as a matter of course during production. In addition, the relevant theory is discussed in a non-mathematical manner to provide readers with the background knowledge of how these techniques work, as well as an appreciation of the limitations of the methods when applied to glass products. Users of photoelastic techniques in the glass industry, both in day-to-day quality assurance and in more specialist fault-finding applications, will find the information in this book relevant to their needs and that it provides an improved understanding of the measurements being made.

A Concept for Measuring and Evaluating Optical Anisotropy Effects in Tempered Architectural Glass

A Concept for Measuring and Evaluating Optical Anisotropy Effects in Tempered Architectural Glass PDF Author: Steffen Dix
Publisher: Springer Nature
ISBN: 3658420294
Category : Technology & Engineering
Languages : en
Pages : 155

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Book Description
Optical anisotropy effects can occur in building envelopes made of tempered glass. The visual effect has been neglected in the evaluation of the building product and increasingly leads to disputes between the parties involved. This thesis extends the state of knowledge on the cause and perception of optical anisotropic effects and presents a concept for measuring and evaluating them in flat monolithic tempered architectural glass. Initially, an overview and description of current photoelastic measurement methods are given, and the accuracy of the used measurement setups is verified for the first time. The experimental basis for the concept is formed by extensive full-field retardation measurements in the laboratory and field studies of the maximum visibility of the anisotropy effects in an outdoor test rig with accompanying polarization measurements of the sky. Various glass types, geometries, and tempering levels are selected based on typically used products, and their influence on the resulting retardation image is investigated. Determining a correlation of the retardation images with the reflection images of selected test specimens in the outdoor test rig complements the experiments. Based on this, digital evaluation methods are presented, further developed, and applied to the measured retardation images. From the critical analysis of these results, limit values for different anisotropy quality classes are derived, and the concept is complemented. With the implementation of the evaluation methods and the limit values in commercial anisotropy scanners, the quality of each glass pane can be determined directly after tempering in the future. By choosing the highest quality class A, it will be possible in the future to significantly reduce anisotropy effects in constructions made of tempered glass panes.

Photoelasticity of Glass Under Thermal Stress

Photoelasticity of Glass Under Thermal Stress PDF Author: Kia Kit Low
Publisher:
ISBN:
Category :
Languages : en
Pages : 120

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Applied Mechanics Reviews

Applied Mechanics Reviews PDF Author:
Publisher:
ISBN:
Category : Mechanics, Applied
Languages : en
Pages : 542

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