학술논문
Method for Identifying and Mapping Flaw Size Distributions on Glass Surfaces for Predicting Mechanical Response.
Document Type
Article
Source
Subject
*GLASS structure
*TENSILE strength
*STRAINS & stresses (Mechanics)
*GLASS industry
*MATERIALS handling
*MECHANICAL behavior of materials
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Language
ISSN
2041-1286
Abstract
The statistical and critical tensile stresses associated with crack initiation on glass surfaces are dependent on the size and location of pre-existing flaws. The introduction, sizes, concentrations, and distribution of those pre-existing flaws at any moment of time are a direct and cumulative consequence of any glass's manufacturing, packaging, handling, and service histories. A new, nondestructive 'High Resolution Flaw Classification System' is under development that rapidly identifies, measures, and maps surface-located flaws on glass. Flaws smaller than 8 × 8 μm are detectable and many square centimeters per second can be scanned. The potential mechanical response of that glass, with that quantified surface-flaw state at that moment of time, can then be predicted using the classical Griffith criterion. [ABSTRACT FROM AUTHOR]