Effects of shape and volume fraction of second phase on stress states in two-phase materials

被引：11

作者：

Kato, M ^{[1
]}

Fujii, T ^{[1
]}

Onaka, S ^{[1
]}

机构：

[1] Tokyo Inst Technol, Dept Innovat & Engineered Mat, Yokohama, Kanagawa 2268502, Japan

来源：

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2000年 / 285卷 / 1-2期

关键词：

two-phase material; deformation behavior; Eshelby's method; Mori and Tanaka's theorem; average stress; inclusion problem;

D O I：

10.1016/S0921-5093(00)00639-0

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The effects of shape and volume fraction of a second phase on stress states and deformation behavior of two-phase materials are discussed. The second phase is treated as inhomogeneous spheroidal inclusions embedded in a matrix. Analytical expressions to describe the stress states in elastically and plastically deformed two-phase materials are obtained with the Eshelby method and the Mori-Tanaka concept of the 'average stress'. The variation of the stress states with the change in the aspect ratio of the spheroidal second-phase is shown for various volume fractions. Considering that the second phase is also plastically deformable, the overall deformation behavior of the two-phase materials is discussed with the results obtained by the evaluation of the stress and strain distributions in the materials. (C) 2000 Elsevier Science S.A. All rights reserved.

引用

页码：144 / 150

页数：7

共 15 条

[1]

EDWARDS RH, 1951, J APPL MECH-T ASME, V18, P19

[2]

Eshelby J. D., 1961, Prog. Solid Mech, V2, P89

[3] THE DETERMINATION OF THE ELASTIC FIELD OF AN ELLIPSOIDAL INCLUSION, AND RELATED PROBLEMS [J].

ESHELBY, JD .

PROCEEDINGS OF THE ROYAL SOCIETY OF LONDON SERIES A-MATHEMATICAL AND PHYSICAL SCIENCES, 1957, 241 (1226) :376-396

[4] Shape-dependent strain energy of an inhomogeneous coherent inclusion with general tetragonal misfit strains [J].

Fujii, T ;

Onaka, S ;

Kato, M .

SCRIPTA MATERIALIA, 1996, 34 (10) :1529-1535

[5]

MORI T, 1996, P J WEERTM S MIN MET, P401

[6]

MURA T, 1987, MICROMECHANICS DEFEC, P215

[7]

MURA T, 1987, MICROMECHANICS DEFEC, P394

[8] THE ELASTIC STRAIN-ENERGY OF A COHERENT INCLUSION WITH DEVIATORIC MISFIT STRAINS [J].

ONAKA, S ;

FUJII, T ;

KATO, M .

MECHANICS OF MATERIALS, 1995, 20 (04) :329-336

[9] Reexamination of influence of uniaxial stress on the morphology of coherent precipitates [J].

Onaka, S ;

Suzuki, Y ;

Fujii, T ;

Kato, M .

SCRIPTA MATERIALIA, 1998, 38 (05) :783-788

[10]

ROTTA A, 1997, MAT SCI ENG A-STRUCT, V299, P182

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