Anisotropic ductile fracture Part II: theory

被引：217

作者：

Benzerga, AA ^{[1
]}

Besson, J ^{[1
]}

Pineau, A ^{[1
]}

机构：

[1] Texas A&M Univ, Dept Aerosp Engn, College Stn, TX 77843 USA

来源：

ACTA MATERIALIA | 2004年 / 52卷 / 15期

关键词：

alloys; anisotropic plasticity; fracture; void coalescence; micromechanics;

D O I：

10.1016/j.actamat.2004.06.019

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A theory of anisotropic ductile fracture is outlined and applied to predict failure in a low alloy steel. The theory accounts for initial anisotropy and microstructure evolution (plastic anisotropy, porosity, void shape, orientation and spacing) and is supplemented by a recent micromechanical model of void-coalescence. A rate-dependent version of the theory is employed to solve boundary value problems. The application to the studied steel relies on material parameters inferred from quantitative metallography measurements. The quantitative prediction of damage accumulation and crack initiation in notched bars is achieved without any adjustable factor and is discussed under various stress states and loading orientations. (C) 2004 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.

引用

页码：4639 / 4650

页数：12

共 26 条

[1] Anisotropy of intermetallic particle cracking damage evolution in an Al-Mg-Si base wrought aluminum alloy under uniaxial compression [J].

Agarwal, H ;

Gokhale, AM ;

Graham, S ;

Horstemeyer, MF .

METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 2002, 33 (11) :3443-3448

[2] THE EFFECT OF VOID SHAPE ON THE DEVELOPMENT OF DAMAGE AND FRACTURE IN PLANE-STRAIN TENSION [J].

BECKER, R ;

SMELSER, RE ;

RICHMOND, O .

JOURNAL OF THE MECHANICS AND PHYSICS OF SOLIDS, 1989, 37 (01) :111-129

[3]

Benzerga A.A., 2000, Ph.D. thesis

[4] Coalescence-controlled anisotropic ductile fracture [J].

Benzerga, AA ;

Besson, J ;

Pineau, A .

JOURNAL OF ENGINEERING MATERIALS AND TECHNOLOGY-TRANSACTIONS OF THE ASME, 1999, 121 (02) :221-229

[5] Synergistic effects of plastic anisotropy and void coalescence on fracture mode in plane strain [J].

Benzerga, AA ;

Besson, J ;

Batisse, R ;

Pineau, A .

MODELLING AND SIMULATION IN MATERIALS SCIENCE AND ENGINEERING, 2002, 10 (01) :73-102

[6] Micromechanics of coalescence in ductile fracture [J].

Benzerga, AA .

JOURNAL OF THE MECHANICS AND PHYSICS OF SOLIDS, 2002, 50 (06) :1331-1362

[7] Plastic potentials for anisotropic porous solids [J].

Benzerga, AA ;

Besson, J .

EUROPEAN JOURNAL OF MECHANICS A-SOLIDS, 2001, 20 (03) :397-434

[8]

BENZERGA AA, 1998, 12 EUR C FRACT ESIS

[9]

BENZERGA AA, 1997, ACT 3 C NAT CALC STR

[10] CAVITY FORMATION FROM INCLUSIONS IN DUCTILE FRACTURE OF A508-STEEL [J].

Beremin, FM .

METALLURGICAL TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 1981, 12 (05) :723-731

← 1 2 3 →