Model of the nonlinear mechanical behavior of 2D SiC-SiC chemical vapor infiltration composites

Journal Article · Mon Aug 01 04:00:00 EDT 1994 · Journal of the American Ceramic Society; (United States)

DOI:https://doi.org/10.1111/j.1151-2916.1994.tb07106.x· OSTI ID:7152653

Aubard, X; Lamon, J ^[1]

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1. Univ. de Bordeaux 1, Pessac (France). Lab. des Composites Thermostructuraux

An approach to the nonlinear stress-strain behavior of ceramic matrix composites was proposed, based upon damage mechanics. Damage-loading relations taking into account effects of anisotropy and coupling were established. These relations allows prediction of the stress-strain behavior, and ultimate failure. The theory was then applied to a 2D SiC/SiC composite subject to tensile loading under 0[degree], 20[degree], and 45[degree] off-axis angles. A two-stage damage mechanism was identified by optical microscopy on specimens under load. Predictions of the stress-strain behavior were in excellent agreement with experimental data.

• OSTI ID: 7152653
• Journal Information: Journal of the American Ceramic Society; (United States), Journal Name: Journal of the American Ceramic Society; (United States) Vol. 77:8; ISSN 0002-7820; ISSN JACTAW
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360603* -- Materials-- Properties
CARBIDES
CARBON COMPOUNDS
COMPOSITE MATERIALS
MATERIALS
MATERIALS TESTING
MATHEMATICAL MODELS
MECHANICAL PROPERTIES
MECHANICAL TESTS
NONLINEAR PROBLEMS
SILICON CARBIDES
SILICON COMPOUNDS
TESTING