BACK-FACE STRAIN COMPLIANCE AND ELECTRICAL-POTENTIAL CRACK LENGTH CALIBRATIONS FOR THE DISK-SHAPED COMPACT-TENSION DC(T) SPECIMEN

被引：27

作者：

GILBERT, CJ ^{[1
]}

MCNANEY, JM ^{[1
]}

DAUSKARDT, RH ^{[1
]}

RITCHIE, RO ^{[1
]}

机构：

[1] UNIV CALIF BERKELEY,DEPT MAT SCI & MINERAL ENGN,BERKELEY,CA 94720

来源：

JOURNAL OF TESTING AND EVALUATION | 1994年 / 22卷 / 02期

关键词：

BACK-FACE STRAIN COMPLIANCE; ELECTRICAL-POTENTIAL CALIBRATION; DISK-SHAPED COMPACT-TENSION DC(T) SPECIMEN;

D O I：

10.1520/JTE12644J

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Back-face strain compliance and electrical-potential crack length calibrations have been experimentally determined for the disk-shaped compact-tension DC(T) specimen. Finite-element modeling was used to ascertain the back-face strain distribution at several crack lengths to determine the significance of inconsistent gage placement. The numerical solutions demonstrated good agreement with experiment, especially at smaller crack lengths when the back-face strain gradients are minimal. It is concluded that precise gage placement is only critical when the crack tip closely approaches the back of the test specimen.

引用

页码：117 / 120

页数：4

共 16 条

[1]

ARONSON GH, 1979, J TEST EVAL, V7, P208, DOI 10.1520/JTE11382J

[2]

Chan S. K., 1970, Engineering Fracture Mechanics, V2, P1, DOI 10.1016/0013-7944(70)90026-3

[3]

EVANS AG, 1989, ASTM STP, V1020, P267

[4]

MAXWELL DC, 1987, AFWALTR874046 AIR FO

[5] STRESS-INTENSITY FACTORS AND CRACK-OPENING DISPLACEMENTS FOR ROUND COMPACT SPECIMENS [J].

NEWMAN, JC .

INTERNATIONAL JOURNAL OF FRACTURE, 1981, 17 (06) :567-578

[6] DUCTILE-PHASE TOUGHENING AND FATIGUE-CRACK GROWTH IN NB-REINFORCED MOLYBDENUM DISILICIDE INTERMETALLIC COMPOSITES [J].

RAO, KTV ;

SOBOYEJO, WO ;

RITCHIE, RO .

METALLURGICAL TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 1992, 23 (08) :2249-2257

[7] MECHANISMS OF FATIGUE CRACK-PROPAGATION IN METALS, CERAMICS AND COMPOSITES - ROLE OF CRACK TIP SHIELDING [J].

RITCHIE, RO .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 1988, 103 (01) :15-28

[8] FATIGUE CRACK-PROPAGATION IN ARALL LAMINATES - MEASUREMENT OF THE EFFECT OF CRACK-TIP SHIELDING FROM CRACK BRIDGING [J].

RITCHIE, RO ;

YU, WK ;

BUCCI, RJ .

ENGINEERING FRACTURE MECHANICS, 1989, 32 (03) :361-377

[9]

RITCHIE RO, 1991, NIPPON SERAM KYO GAK, V99, P1047, DOI 10.2109/jcersj.99.1047

[10] CYCLIC FATIGUE-CRACK PROPAGATION, STRESS-CORROSION, AND FRACTURE-TOUGHNESS BEHAVIOR IN PYROLYTIC CARBON-COATED GRAPHITE FOR PROSTHETIC HEART-VALVE APPLICATIONS [J].

RITCHIE, RO ;

DAUSKARDT, RH ;

YU, WK ;

BRENDZEL, AM .

JOURNAL OF BIOMEDICAL MATERIALS RESEARCH, 1990, 24 (02) :189-206

← 1 2 →