Fracture of components with V-shaped notches

被引：110

作者：

Gómez, FJ ^{[1
]}

Elices, M ^{[1
]}

机构：

[1] Univ Politecn Madrid, Dept Ciencia Mat, ETS Ingn Caminos, E-28040 Madrid, Spain

来源：

ENGINEERING FRACTURE MECHANICS | 2003年 / 70卷 / 14期

关键词：

V-notches; cohesive crack; fracture mechanics; PMMA; cracking criterion;

D O I：

10.1016/S0013-7944(03)00131-0

中图分类号：

O3 [力学];

学科分类号：

08 ; 0801 ;

摘要：

An experimental and numerical study was performed to ascertain the influence of V-notches on the strength of different brittle materials. Critical loads were computed using the cohesive process zone model that allows extension of classical methods, based on linear elastic fracture mechanics, to rounded V-notches and contained plasticity. A large experimental programme, with more than one hundred tests, was performed with PMMA samples to support the numerical predictions. All the experimental results are reported. In addition, experimental results of notched steel samples, performed by Strandberg, [Engng. Fract. Mech. 69 (2002) 403], and notched samples made with expanded PVC foams, performed by Grenestedt, Hallstrom and Kuttenkeuler [Engng. Fract. Mech. 54 (1996) 445], are in very good agreement with the numerical computations, adding further support to the cohesive process zone model. (C) 2003 Elsevier Science Ltd. All rights reserved.

引用

页码：1913 / 1927

页数：15

共 15 条

[1]

Bazant ZP, 1998, FRACTURE SIZE EFFECT

[2] STRESS-SINGULARITY AND GENERALIZED FRACTURE-TOUGHNESS AT THE VERTEX OF REENTRANT CORNERS [J].

CARPINTERI, A .

ENGINEERING FRACTURE MECHANICS, 1987, 26 (01) :143-&

[3]

CRISFIELD MA, 1995, NON LINEAR FINITE EL

[4] Fracture initiation at sharp notches: Correlation using critical stress intensities [J].

Dunn, ML ;

Suwito, W ;

Cunningham, S .

INTERNATIONAL JOURNAL OF SOLIDS AND STRUCTURES, 1997, 34 (29) :3873-3883

[5] The cohesive zone model:: advantages, limitations and challenges [J].

Elices, M ;

Guinea, GV ;

Gómez, J ;

Planas, J .

ENGINEERING FRACTURE MECHANICS, 2002, 69 (02) :137-163

[6] Modeling of the competition between shear yielding and crazing in glassy polymers [J].

Estevez, R ;

Tijssens, MGA ;

Van der Giessen, E .

JOURNAL OF THE MECHANICS AND PHYSICS OF SOLIDS, 2000, 48 (12) :2585-2617

[7] On cracks emanating from wedges in expanded PVC foam [J].

Grenestedt, JL ;

Hallstrom, S ;

Kuttenkeuler, J .

ENGINEERING FRACTURE MECHANICS, 1996, 54 (04) :445-456

[8]

HANSON JH, 2000, THESIS CORNELL U

[9]

KINLOCH A, 1983, FRACTURE BEHAV POLYM, pCH5

[10]

Lin G, 1998, FATIGUE FRACT ENG M, V21, P1159, DOI 10.1046/j.1460-2695.1998.00096.x

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