Singularities at grain triple junctions in two-dimensional polycrystals with cubic and orthotropic grains

被引：13

作者：

Picu, RC ^{[1
]}

Gupta, V ^{[1
]}

机构：

[1] UNIV CALIF LOS ANGELES,DEPT MECH & AEROSP ENGN,LOS ANGELES,CA 90095

来源：

JOURNAL OF APPLIED MECHANICS-TRANSACTIONS OF THE ASME | 1996年 / 63卷 / 02期

关键词：

D O I：

10.1115/1.2788863

中图分类号：

O3 [力学];

学科分类号：

08 ; 0801 ;

摘要：

Stress singularities at grain triple junctions are evaluated for various asymmetric grain boundary configurations and random orientations of cubic and orthotropic grains. The analysis is limited to elastic plane-strain deformation and carried out using the Eshelby-Stroh formalism for anisotropic elasticity. For both the cubic and ASME orthotropic grains, the most singular configuration corresponds to the fully symmetric case with grain boundaries 120 deg apart, and with symmetric orientations of the material axes. The magnitude of the singularities are obtained for several engineering polycrystals.

引用

页码：295 / 300

页数：6

共 20 条

[11] OBSERVATIONS OF CRACK NUCLEATION IN COLUMNAR ICE DUE TO GRAIN-BOUNDARY SLIDING [J].

PICU, RC ;

GUPTA, V .

ACTA METALLURGICA ET MATERIALIA, 1995, 43 (10) :3791-3797

[12]

PICU RC, 1995, IN PRESS INT J SOLID

[13]

PICU RC, 1994, P 12 INT S IC IAHR 9, P464

[14]

SIMMONS G, 1985, SINGLE CRYSTAL ELAST

[15] 3-DIMENSIONAL STRESS SINGULARITIES IN ANISOTROPIC MATERIALS AND COMPOSITES [J].

SOMARATNA, N ;

TING, TCT .

INTERNATIONAL JOURNAL OF ENGINEERING SCIENCE, 1986, 24 (07) :1115-1134

[16] DELAMINATION SPECIMENS FOR ORTHOTROPIC MATERIALS [J].

SUO, ZG .

JOURNAL OF APPLIED MECHANICS-TRANSACTIONS OF THE ASME, 1990, 57 (03) :627-634

[17] GENERALIZED DUNDURS CONSTANTS FOR ANISOTROPIC BIMATERIALS [J].

TING, TCT .

INTERNATIONAL JOURNAL OF SOLIDS AND STRUCTURES, 1995, 32 (3-4) :483-500

[18] EXPLICIT SOLUTION AND INVARIANCE OF THE SINGULARITIES AT AN INTERFACE CRACK IN ANISOTROPIC COMPOSITES [J].

TING, TCT .

INTERNATIONAL JOURNAL OF SOLIDS AND STRUCTURES, 1986, 22 (09) :965-983

[19] SINGULARITIES AT THE TIP OF A CRACK NORMAL TO THE INTERFACE OF AN ANISOTROPIC LAYERED COMPOSITE [J].

TING, TCT ;

HOANG, PH .

INTERNATIONAL JOURNAL OF SOLIDS AND STRUCTURES, 1984, 20 (05) :439-454

[20] MICROCRACKING IN CERAMICS INDUCED BY THERMAL-EXPANSION OR ELASTIC-ANISOTROPY [J].

TVERGAARD, V ;

HUTCHINSON, JW .

JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 1988, 71 (03) :157-166

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