TOUGHENED CARBON FIBER/EPOXY COMPOSITES - THE RELATIVE INFLUENCE OF AN ELASTOMER INTERPHASE AND ELASTOMER DISPERSED IN THE MATRIX

被引：4

作者：

LOW, BY

ANDERSON, KL

VINCENT, M

GARDNER, SD

PITTMAN, CU

HACKETT, RM

机构：

[1] MISSISSIPPI STATE UNIV,DEPT CHEM ENGN,MISSISSIPPI STATE,MS 39762

[2] MISSISSIPPI STATE UNIV,DEPT CHEM,MISSISSIPPI STATE,MS 39762

[3] UNIV MISSISSIPPI,DEPT CIVIL ENGN,UNIVERSITY,MS 38677

来源：

COMPOSITES ENGINEERING | 1995年 / 5卷 / 04期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1016/0961-9526(95)00017-H

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A micromechanical model based on the three-phase method of cells is used to predict the effective properties and thermo-mechanical stresses in carbon fiber/epoxy composites that have been modified by the addition of elastomer. Three composite configurations are considered: (1) carbon fiber/epoxy without elastomer, (2) carbon fiber/epoxy containing an elastomer interphase between the fiber and the matrix and (3) carbon fiber/epoxy with elastomer dispersed in the bulk matrix. The variables investigated include the elastomer volume fraction, the elastomer placement and the fiber volume fraction. Results from the parametric study indicate that the composite response is significantly influenced by all three variables. Positive aspects are identified with respect to each elastomer configuration. In general, a thin, concentric elastomer interphase surrounding each fibril appears more beneficial to the reduction of tensile residual thermal stresses. However, elastomer dispersed in the matrix can also yield favorable stress profiles with relatively less degradation of the composite stiffness. The trends established are predicted to be essentially independent of the fiber volume fraction.

引用

页码：437 / 457

页数：21

共 46 条

[1]

Aboudi, Mechanics of Composite Materials: A Unified Micromechanical Approach, (1991)

[2]

Atkins, Intermittent bonding for high toughness/high strength composites, J. Mater. Sci., 10, pp. 819-832, (1975)

[3]

Bascom, Yon, Jensen, Cordner, The adhesion of carbon fibers to thermoset and thermoplastic polymers, The Journal of Adhesion, 34, pp. 79-98, (1991)

[4]

Bell, Interlayer/interphase effects in graphite-epoxy composites, Proc. 17th Annual Meeting of the Adhesion Society, pp. 74-76, (1994)

[5]

Bell, Chang, Rhee, Joseph, Application of ductile polymeric coatings onto graphite fibers, Polym. Comp., 8, 1, pp. 46-52, (1987)

[6]

Bender, Shadwell, Bulik, Incorvati, Lewis, Effect of fiber coatings and composite processing on properties of zirconia-based matrix SiC fiber composites, Am. Ceram. Soc. Bull., 65, 2, pp. 363-369, (1986)

[7]

Boerio, Hong, Non-destructive characterization of epoxy-dicyandiamide interphases using surface-enhanced Raman scattering, Mater. Sci. Engng, 126 A, pp. 245-252, (1990)

[8]

Bradley, Relationship of matrix toughness to interlaminar fracture toughness, Application of Fracture Mechanics to Composite Materials, pp. 159-187, (1989)

[9]

Bucknall, Approaches to toughness enhancement, Advanced Composites, pp. 145-161, (1989)

[10]

Chang, Bell, Joseph, Effects of a controlled modulus interlayer upon the properties of graphite/epoxy composite, SAMPE Quart., 18, 3, pp. 39-45, (1987)

← 1 2 3 4 5 →