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Title: A micromechanical plastic model for ZrO2-toughened ceramics
Authors: Lam, K.Y. 
Zhang, J.M. 
Ong, P.P. 
Issue Date: Jan-1995
Citation: Lam, K.Y.,Zhang, J.M.,Ong, P.P. (1995-01). A micromechanical plastic model for ZrO2-toughened ceramics. Mechanics of Materials 19 (2-3) : 227-238. ScholarBank@NUS Repository.
Abstract: An increment plasticity formulation is established for the transformation plastic behavior of zirconia-toughened ceramics based on micromechanics of heterogeneous media. Mori-Tanaka estimates are established for the overall plastic strains and the overall yield stresses. The plastic flow function is determined in terms of the transformation twinning of a single zirconia particle embedded in an infinite matrix with the average matrix stresses. Numerical examples are given for the transformation yielding of ceramics with aligned zirconia particles under uniaxial loading. © 1995.
Source Title: Mechanics of Materials
ISSN: 01676636
Appears in Collections:Staff Publications

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