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Assessment of the Interfacial Properties of Ceramic‐Matrix Composites Using Strain Partition under Load
Author(s) -
Morvan JeanMarie,
Baste Stéphane
Publication year - 1998
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.1151-2916.1998.tb02636.x
Subject(s) - materials science , composite material , ceramic matrix composite , ceramic , ultimate tensile strength , stiffness , composite number , matrix (chemical analysis) , tensile testing , stress (linguistics) , linguistics , philosophy
The interfacial sliding stress is a key parameter in the global behavior of ceramic‐matrix composites. An ultrasonic characterization, through the complete determination of the stiffness tensor along a tensile test, detects all the damage mechanisms: transverse matrix microcracking and the existence of longitudinal cracks at the fiber/matrix interface. It also allows a strain partition under load. A micromechanical model is established and gives access to the value of the interfacial sliding stress during the entire tensile test, whether the damage occurs at the mesostructural or at the microstructural level of the composite.