The cohesive crack concept:: application to PMMA at-60○C

被引：86

作者：

Gómez, FJ ^{[1
]}

Elices, M ^{[1
]}

Planas, J ^{[1
]}

机构：

[1] Univ Politecn Madrid, ETS Ingn Caminos, Dept Ciencias Mat, Madrid 28040, Spain

来源：

ENGINEERING FRACTURE MECHANICS | 2005年 / 72卷 / 08期

关键词：

notches; PMMA; cohesive crack; softening function; fracture criterion;

D O I：

10.1016/j.engfracmech.2004.09.005

中图分类号：

O3 [力学];

学科分类号：

08 ; 0801 ;

摘要：

This paper provides a large number of experimental results from the fracture of round-notched samples of a material that remains essentially in the linear elastic regime up to crack initiation. Loading of the samples ranged from pure tensile up to bending. Notch acuity was changed by changing the notch tip radii, notch angle and notch depth. All these experimental results have been used to analyze the predictive capability of the cohesive crack model. All tests were numerically simulated and several criteria justifying the adopted softening function are discussed. The agreement between numerical prediction and experimental results was very good. (C) 2004 Elsevier Ltd. All rights reserved.

引用

页码：1268 / 1285

页数：18

共 25 条

[1]

Baant ZP., 1998, Fracture and size effect in concrete and other quasibrittle materials, V1st ed.

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

CARPINTERI, A .

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

[3] 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

[4]

Elices M., 1989, Fracture mechanics of concrete structures, P16

[5] CRACK-GROWTH RESISTANCE CURVES IN STRAIN-SOFTENING MATERIALS [J].

FOOTE, RML ;

MAI, YW ;

COTTERELL, B .

JOURNAL OF THE MECHANICS AND PHYSICS OF SOLIDS, 1986, 34 (06) :593-607

[6] A fracture criterion for blunted V-notched samples [J].

Gómez, FJ ;

Elices, M .

INTERNATIONAL JOURNAL OF FRACTURE, 2004, 127 (03) :239-264

[7] Cracking in PMMA containing U-shaped notches [J].

Gómez, FJ ;

Elices, M ;

Valiente, A .

FATIGUE & FRACTURE OF ENGINEERING MATERIALS & STRUCTURES, 2000, 23 (09) :795-803

[8] A fracture criterion for sharp V-notched samples [J].

Gómez, FJ ;

Elices, M .

INTERNATIONAL JOURNAL OF FRACTURE, 2003, 123 (3-4) :163-175

[9] A FRACTURE CRITERION FOR EDGE-BONDED BIMATERIAL BODIES [J].

GRADIN, PA .

JOURNAL OF COMPOSITE MATERIALS, 1982, 16 (NOV) :448-456

[10] A GENERAL BILINEAR FIT FOR THE SOFTENING CURVE OF CONCRETE [J].

GUINEA, GV ;

PLANAS, J ;

ELICES, M .

MATERIALS AND STRUCTURES, 1994, 27 (166) :99-105

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