A NEW EVALUATION PROCEDURE FOR CRACK CLOSURE

被引：31

作者：

CHEN, DL ^{[1
]}

WEISS, B ^{[1
]}

STICKLER, R ^{[1
]}

机构：

[1] ACAD SINICA,INST MET RES,NATL LAB FATIGUE & FRACTURE MAT,SHENYANG 110015,PEOPLES R CHINA

来源：

INTERNATIONAL JOURNAL OF FATIGUE | 1991年 / 13卷 / 04期

关键词：

CRACK CLOSURE; BENDING TESTS; LOAD-DISPLACEMENT CURVES; STRAIN GAUGES;

D O I：

10.1016/0142-1123(91)90360-B

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

Bending fatigue tests can be used as a simple method for the determination of load-displacement curves near threshold for specimens containing surface cracks. The test method involves a strain gauge technique that yields highly reproducible results for cyclic loading from positive to negative stress ratios. Applying a new evaluation procedure one obtains DELTA-K(th,eff) values that are considered to be more realistic compared with those determined by conventional methods.

引用

页码：327 / 331

页数：5

共 29 条

[1]

BANERJEE S, 1984, AFWALTR844031 TECHN

[2] THE USE OF LASER EXTENSOMETER TO STUDY THE BEHAVIOR OF SHORT FATIGUE CRACKS [J].

BARTLETT, ML ;

SAXENA, A .

ENGINEERING FRACTURE MECHANICS, 1988, 30 (05) :655-&

[3]

BOWLES CQ, 1978, THESIS DELFT U TECHN

[4] OBSERVATION OF CRACK CLOSURE USING A CRACK MOUTH OPENING DISPLACEMENT GAUGE [J].

BRAHMA, KK ;

DASH, PK ;

DATTAGURU, B .

INTERNATIONAL JOURNAL OF FATIGUE, 1989, 11 (01) :37-41

[5]

CARMAN CD, 1988, ASTM STP, V982, P214

[6]

CHEN DL, IN PRESS ANAL MODEL

[7]

DONALD JK, 1988, ASTM STP, V982, P222

[8]

Elber W., 1970, Engineering Fracture Mechanics, V2, P37, DOI 10.1016/0013-7944(70)90028-7

[9]

FOROUGHI R, 1988, ASTM STP, V982, P260

[10] CRACK CLOSURE AND CRACK-PROPAGATION RATES IN 7050 ALUMINUM [J].

GAN, D ;

WEERTMAN, J .

ENGINEERING FRACTURE MECHANICS, 1981, 15 (1-2) :87-&

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