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Analysis of a Microcrack Prototype and Its Implications for Microcrack Toughening
Author(s) -
Cai Hongda,
Moran B.,
Faber K. T.
Publication year - 1991
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.1151-2916.1991.tb07164.x
Subject(s) - materials science , toughening , hydrostatic equilibrium , composite material , residual stress , stress intensity factor , tension (geology) , particle (ecology) , hydrostatic stress , fracture mechanics , mechanics , structural engineering , finite element method , toughness , ultimate tensile strength , geology , physics , oceanography , quantum mechanics , engineering
The stress intensity factor, the volume, and the macroscopic dilatational strain associated with microcracking for various crack lengths and elastic mismatches are examined for a microcrack prototype, which consists of a penny‐shaped crack in the center of spherical particle under residual hydrostatic tension. The results of these quantities and the implications for microcrack toughening are presented. The effects of elastic mismatch between the particle and matrix phases are emphasized.