STRESS-FIELDS IN COMPOSITES REINFORCED BY COATED CYLINDRICALLY ORTHOTROPIC FIBERS

被引：75

作者：

CHEN, T

DVORAK, GJ

BENVENISTE, Y

机构：

[1] Department of Civil Engineering, Rensselaer Polytechnic Institute, Troy

来源：

MECHANICS OF MATERIALS | 1990年 / 9卷 / 01期

关键词：

D O I：

10.1016/0167-6636(90)90027-D

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Local fields and effective thermoelastic properties are derived for coated fiber composites with cylindrically orthotropic fibers and transversely isotropic coating and matrix phases. Thermomechanical loading situations are considered in which a uniform stress and a uniform temperature change are applied to the boundary of the composite aggregate. A micromechanical model, based on the Mori and Tanaka's concept of average stress in the matrix, is used to account for phase interaction. It is found that a special treatment is needed in formulation of effective properties of composites reinforced by constituents which are curvilinearly anisotropic. Results are presented for a pitch precursor carbon fiber, carbon coating and titanium aluminate matrix system. © 1990.

引用

页码：17 / 32

页数：16

共 14 条

[1]

Avery, Herakovich, Effect of fiber anisotropy on thermal stresses in fibrous composites, J. Appl. Mech., 53, (1986)

[2]

Benveniste, Dvorak, Chen, Stress field in composites with coated inclusions, Mech. Mater., 7, (1989)

[3]

Chen, Diefendorf, A theoretical calculation of residual stresses in carbon fibers, Proc. 17th Biennial Conference on Carbon, (1985)

[4]

Christensen, Lo, Solutions for effective shear properties in three phase sphere and cylinder models, J. Mech. Phys. Solids, 27, (1979)

[5]

Christensen, Lo, Mechanics of low density materials, Journal of the Mechanics and Physics of Solids, 34, (1986)

[6]

Cohen, Hyer, Residual stresses in cross-ply composite tubes, Report CCMS-84-04, (1984)

[7]

Dvorak, Chen, Thermal expansion of three-phase composite materials, J. Appl. Mech., 56, (1989)

[8]

Dvorak, Chen, Teply, Thermomechanical stress fields in high temperature fibrous composites: I. Unidirectional laminates, (1989)

[9]

Hill, Theory of mechanical properties of fibre-strengthened materials—III. self-consistent model, Journal of the Mechanics and Physics of Solids, 13, (1964)

[10]

Norris, An examination of the Mori-Tanaka effective medium approximation for multiphase composites, J. Appl. Mech., 56, (1989)

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