Local approach to fracture for cleavage crack arrest prediction

被引：23

作者：

Berdin, Clotilde ^{[1
]}

Hajjaj, Mejido ^{[2
]}

Bompard, Philippe ^{[1
]}

Bugat, Stephane ^{[2
]}

机构：

[1] Ecole Cent Paris, L MSSMat, CNRS, UMR 8579, F-92295 Chatenay Malabry, France

[2] EDF, Ctr Renardieres, F-78818 Moret Sur Loing, France

来源：

ENGINEERING FRACTURE MECHANICS | 2008年 / 75卷 / 11期

关键词：

cleavage; arrest toughness; local approach; dynamic fracture;

D O I：

10.1016/j.engfracmech.2007.08.013

中图分类号：

O3 [力学];

学科分类号：

08 ; 0801 ;

摘要：

Crack arrest can complement the crack initiation concept to assess integrity of structures. This paper deals with the application of a local approach model derived from the RKR model to predict cleavage crack propagation and arrest in thermal shock experiments performed on pre-cracked discs made of a low alloy bainitic steel. The numerical procedure takes into account dynamic effects and an accurate behavior law for the material. Simulations with a crack speed criterion help the identification of the critical stress criterion. The results show a good prediction of the crack jump when a 3D modeling is used. (C) 2007 Elsevier Ltd. All rights reserved.

引用

页码：3264 / 3275

页数：12

共 17 条

[1] A LOCAL CRITERION FOR CLEAVAGE FRACTURE OF A NUCLEAR PRESSURE-VESSEL STEEL [J].

不详 .

METALLURGICAL TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 1983, 14 (11) :2277-2287

[2]

BRUDEKIN FM, 1999, PRES VES PIPING, V76, P879

[3] Modern,topics and challenges in dynamic fracture [J].

Cox, BN ;

Gao, HJ ;

Gross, D ;

Rittel, D .

JOURNAL OF THE MECHANICS AND PHYSICS OF SOLIDS, 2005, 53 (03) :565-596

[4] INFLUENCE OF MICROSTRUCTURE ON YIELD STRESS AND CLEAVAGE FRACTURE-STRESS AT -196-DEGREES-C OF SA-508 CLASS-2 PRESSURE-VESSEL STEEL [J].

CURRY, DA .

METAL SCIENCE, 1984, 18 (02) :67-76

[5] Numerical aspects of cohesive-zone models [J].

de Borst, R .

ENGINEERING FRACTURE MECHANICS, 2003, 70 (14) :1743-1757

[6]

Falk ML, 2001, J PHYS 4

[7]

HAJJAJ M, 2007, ENG FRACT MECH, DOI DOI 10.1016/J.ENGFRACMECH.2007.0421

[8]

HAJJAJ M, 2005, P ICFXI TOR IT

[9] Prediction of cleavage fracture for a low-alloy steel in the ductile-to-brittle transition temperature range [J].

Hausild, P ;

Berdin, C ;

Bompard, P .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2005, 391 (1-2) :188-197

[10] Dynamic crack propagation and crack arrest investigated with a new specimen geometry .1. Experimental and numerical calculations [J].

Iung, T ;

Pineau, A .

FATIGUE & FRACTURE OF ENGINEERING MATERIALS & STRUCTURES, 1996, 19 (11) :1357-1367

← 1 2 →