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A Mixed‐Mode Crack‐Growth and Fracture Model for Field‐Assisted Ion‐Exchanged Glass
Author(s) -
ABOUELLEIL MAHMOUD,
COOPER A. R.
Publication year - 1981
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.1151-2916.1981.tb10245.x
Subject(s) - materials science , fracture (geology) , composite material , stress field , ion , shear (geology) , ultimate tensile strength , stress (linguistics) , field (mathematics) , layer (electronics) , compression (physics) , structural engineering , chemistry , engineering , mathematics , organic chemistry , pure mathematics , linguistics , philosophy , finite element method
It is suggested that shear forces from the compression layer during field‐assisted ion exchange of glass cause stable growth of preexisting flaws when the advancing ion‐exchanged layer approaches the flaw tip. A quantitative model is presented which explains most of the previously puzzling experimental results, even though it ignores the change in crack direction required if the maximum tensile stress criterion is appropriate for fracture.