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Statistics of Flaw Interaction in Brittle Materials
Author(s) -
Lam KhinYong,
Cotterell Brian,
Phua SweePheng
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.tb06886.x
Subject(s) - materials science , brittleness , fracture (geology) , stress intensity factor , enhanced data rates for gsm evolution , ceramic , intensity (physics) , composite material , fracture mechanics , physics , optics , computer science , telecommunications
The problem of elastic interaction of an array of microcracks is considered. The solution is based on an efficient surface integral method using distribution of edge dislocations to represent the microcracks in the mathematical model. From the analysis of the interaction between two identical cracks, it is seen that interaction is most likely to produce a slight enhancement in the stress intensity factor. By performing computer experiments on a random array of microcracks, the effect of crack interaction is studied statistically as a function of the density of the microcracks. The significance of the interaction effects for fracture in ceramics is discussed.