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Effects of Aspect Ratios of Ellipsoidal Inclusions on Elastic Stress Transfer of Ceramic Composites
Author(s) -
Hsueh ChunHway
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.tb06132.x
Subject(s) - ellipsoid , materials science , composite material , volume fraction , ceramic , matrix (chemical analysis) , elastic modulus , inclusion (mineral) , stress (linguistics) , modulus , ceramic matrix composite , mineralogy , chemistry , physics , astronomy , linguistics , philosophy
The elastic stress transfer from a ceramic matrix to aligned elliposidal inclusions is analyzed for the case where the axis of the applied load is parallel to the axis of the ellipsoid. Perfect bonding between the matrix and inclusions is assumed. The calculation is based on Eshelby's model for loading of an infinite matrix containing an ellipsoidal inclusion, and the modification developed by Mori and Tanaka to account for the effect of finite volume fractions of inclusions. The results show that the transfer of the axial stress from the matrix to inclusions increases with the increase in the aspect ratio of the ellipsoid, and decreases with the increase in the volume fraction of inclusions when Young's modulus of the inclusion is higher than that of the matrix.