A micromechanics model for thermoelastic properties of plain weave fabric composites

Journal Article · Sat Oct 01 04:00:00 EDT 1994 · Journal of Engineering Materials and Technology; (United States)

DOI:https://doi.org/10.1115/1.2904322· OSTI ID:6799864

Hahn, H T; Pandey, R ^[1]

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1. Univ. of California, Los Angeles, CA (United States)

A micromechanics model is presented to predict thermoelastic properties of composites reinforced with plain weave fabrics. A representative volume element is chosen for analysis and the fiber architecture is described by a few simple functions. Equations are developed to calculate various phase fractions from geometric parameters that can be measured on a cross section. Effective elastic moduli and effective thermal expansion coefficients are determined under the assumption of uniform strain inside the representative volume element. The resulting model is similar to the classical laminated theory, and hence is easier to use than other models available in the literature. An experimental correlation is provided for a number of Nicalon SiC/CVI SiC and Graphite/CVI SiC composite laminates.

• OSTI ID: 6799864
• Journal Information: Journal of Engineering Materials and Technology; (United States), Journal Name: Journal of Engineering Materials and Technology; (United States) Vol. 116:4; ISSN 0094-4289; ISSN JEMTA8
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360603* -- Materials-- Properties
360606 -- Other Materials-- Physical Properties-- (1992-)
CARBIDES
CARBON COMPOUNDS
CARBON FIBERS
CHEMICAL COATING
CHEMICAL VAPOR DEPOSITION
COMPOSITE MATERIALS
DEPOSITION
ELASTICITY
EXPANSION
FIBERS
IMPREGNATION
MATERIALS
MATHEMATICAL MODELS
MECHANICAL PROPERTIES
REINFORCED MATERIALS
SILICON CARBIDES
SILICON COMPOUNDS
SURFACE COATING
TENSILE PROPERTIES
THERMAL EXPANSION