Analyses of residual thermal stresses in ceramic matrix composites
Conference
·
OSTI ID:567505
- Oak Ridge National Lab., TN (United States)
Residual thermal stresses in ceramic matrix composites containing either ellipsoidal inclusions or short fibers (i.e., fibers of finite length) are considered. The residual stresses in ellipsoidal inclusions are uniform, and they are analyzed using a modified Eshelby model. Although closed-form analytical solutions can be obtained, their formulations are formidable. When the aspect ratio of the ellipsoid is 0, 1, or infinity, simple analytical solutions can be obtained using different models, and they are in excellent agreement with those obtained from the modified Eshelby model. Residual stresses in short fibers are nonuniform, and they are analyzed using a modified shear lag model, in which imaginary fibers are introduced to satisfy the continuity condition at the fiber ends. The analytical solutions are compared to the experimental results.
- DOE Contract Number:
- AC05-96OR22464
- OSTI ID:
- 567505
- Report Number(s):
- CONF-960106--
- Country of Publication:
- United States
- Language:
- English
Similar Records
Analyses of residual thermal stresses in ceramic matrix composites
Observations on residual stresses in ceramic composites by neutron diffraction techniques. [SiC whisker--Al/sub 2/O/sub 3/ matrix]
Stress transfer in a model composite containing a single embedded fiber
Conference
·
Sat Dec 30 23:00:00 EST 1995
·
OSTI ID:188931
Observations on residual stresses in ceramic composites by neutron diffraction techniques. [SiC whisker--Al/sub 2/O/sub 3/ matrix]
Conference
·
Sun Jan 31 23:00:00 EST 1988
·
OSTI ID:5025514
Stress transfer in a model composite containing a single embedded fiber
Journal Article
·
Mon Mar 31 23:00:00 EST 1997
· Acta Materialia
·
OSTI ID:474175