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Fractographic Analysis of Delayed Failure in Soda‐Lime Glass
Author(s) -
MECHOLSKY J. J.,
GONZALEZ A. C.,
FREIMAN S. W.
Publication year - 1979
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/j.1151-2916.1979.tb12735.x
Subject(s) - soda lime glass , fracture (geology) , materials science , composite material , constant (computer programming) , lime , fracture mechanics , mineralogy , metallurgy , geology , computer science , programming language
Fractographic analysis of soda‐lime bars which failed under dead weight loading shows that the fracture mirror to initial flaw size ratio is a function of time under load, but that the mirror to critical flaw size ratio is a constant. The mirror constants are the same in delayed and rapid failure. The experimental results correlate with fracture mechanics predictions of time‐to‐failure based on subcritical crack growth. Scatter of the data about the prediction is discussed in terms of variations in flaw geometry.