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Growth and Coalescence of Indentation Cracks in Glass
Author(s) -
Yoda Mitsuo,
Yoshikawa Yoshio
Publication year - 1987
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.1151-2916.1987.tb05641.x
Subject(s) - coalescence (physics) , indentation , materials science , stress intensity factor , residual stress , coalescent theory , composite material , fissure , mechanics , fracture mechanics , physics , chemistry , biochemistry , astrobiology , gene , phylogenetic tree
Indentation cracks show the initial decrease and subsequent increase in crack velocity with the stress intensity factor whether the cracks are single or coalescent. The decrease in crack velocity is mainly due to the residual stress effects. For two collinear cracks, the individual cracks before coalescence show crack velocity much higher than would be expected on the basis of the stress intensity factor for single or coalescent cracks.