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Effect of Residual Stresses on the Fracture of Ground Ceramics
Author(s) -
Samuel Robert,
Chandrasekar Srinivasan,
Farris Thomas N.,
Licht Robert H.
Publication year - 1989
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.1151-2916.1989.tb06007.x
Subject(s) - residual stress , materials science , grinding , ceramic , composite material , fracture (geology) , curvature , residual , fracture mechanics , geometry , mathematics , algorithm
Grinding induces resiual stresses and cracks at and near the surfaces of ceramic workpieces. The residual stresses in several ground ceramics are measured using the curvature method. Four‐point bend tests are conducted to measure the fracture strength of the ground specimens. A fracture mechanics analysis includes the measured residual stress to calculate the grinding‐induced surface crack size. It is shown that the residual stresses sometimes have a significant effect on the strength‐controlling flaw size.