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Modeling the Elastic‐Plastic Deformation of Al/Al 2 O 3 Particulate Composites
Author(s) -
Nan CeWen,
Clarke David R.
Publication year - 1997
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.1151-2916.1997.tb02816.x
Subject(s) - materials science , composite material , volume fraction , deformation (meteorology) , particulates , plasticity , range (aeronautics) , volume (thermodynamics) , dislocation , thermodynamics , chemistry , physics , organic chemistry
Comparison is made between experimental measurements of the elasticplastic deformation of a series of Al/Al 2 O 3 particulate composites with a rather simple hybrid modeling method combining an effective medium approximation with the essential features of dislocation plasticity. Two different effective approximationsa simple, non‐self‐consistent and a self‐consistent effective medium approximationare employed depending on the volume fraction of particles. For a wide range of volume fractions of Al 2 O 3 particles, there is good agreement between the full stressstrain curves measured and the predictions of the hybrid model.