Fracture loads for ceramic samples with rounded notches

被引：47

作者：

Gómez, FJ ^{[1
]}

Elices, M ^{[1
]}

机构：

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

来源：

ENGINEERING FRACTURE MECHANICS | 2006年 / 73卷 / 07期

关键词：

notches; cohesive crack; fracture criterion; ceramics;

D O I：

10.1016/j.engfracmech.2005.11.005

中图分类号：

O3 [力学];

学科分类号：

08 ; 0801 ;

摘要：

Fracture loads of ceramic components with rounded notches cannot be computed by linear elastic fracture mechanics techniques because no stress singularity exists. We propose a procedure to estimate such fracture loads, which is based on the cohesive zone model and supported by experimental evidence with alumina, zirconia and silicon ceramics. Data from 18 ceramic materials and different notched geometries were used. The only material parameters needed were the tensile strength and the fracture toughness. (c) 2005 Elsevier Ltd. All rights reserved.

引用

页码：880 / 894

页数：15

共 42 条

[11] Fracture toughness of ceramics and ceramic composites [J].

Gogotsi, GA .

CERAMICS INTERNATIONAL, 2003, 29 (07) :777-784

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

Gómez, FJ ;

Elices, M .

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

[13] The cohesive crack concept:: application to PMMA at-60○C [J].

Gómez, FJ ;

Elices, M ;

Planas, J .

ENGINEERING FRACTURE MECHANICS, 2005, 72 (08) :1268-1285

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

Gómez, FJ ;

Elices, M .

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

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

GRADIN, PA .

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

[16]

*JIS R, 1993, 1607 JIS R JAP STAND

[17] Fracture toughness of polysilicon MEMS devices [J].

Kahn, H ;

Tayebi, N ;

Ballarini, R ;

Mullen, RL ;

Heuer, AH .

SENSORS AND ACTUATORS A-PHYSICAL, 2000, 82 (1-3) :274-280

[18] Mechanical measurements at the micron and nanometer scales [J].

Knauss, WG ;

Chasiotis, I ;

Huang, Y .

MECHANICS OF MATERIALS, 2003, 35 (3-6) :217-231

[19] A finite-volume-energy based approach to predict the static and fatigue behavior of components with sharp V-shaped notches [J].

Lazzarin, P ;

Zambardi, R .

INTERNATIONAL JOURNAL OF FRACTURE, 2001, 112 (03) :275-298

[20] A unified approach to the evaluation of linear elastic stress fields in the neighborhood of cracks and notches [J].

Lazzarin, P ;

Tovo, R .

INTERNATIONAL JOURNAL OF FRACTURE, 1996, 78 (01) :3-19

← 1 2 3 4 5 →