THE DISTRIBUTION OF STRAIN WITHIN CRACK TIP PLASTIC ZONES

被引：27

作者：

DAVIDSON, DL

机构：

[1] Southwest Research Inst, San, Antonio, TX, USA, Southwest Research Inst, San Antonio, TX, USA

来源：

ENGINEERING FRACTURE MECHANICS | 1986年 / 25卷 / 01期

关键词：

IMAGING TECHNIQUES - METALS TESTING - STRAIN - Measurements;

D O I：

10.1016/0013-7944(86)90210-9

中图分类号：

O3 [力学];

学科分类号：

08 ; 0801 ;

摘要：

Strains ahead of cracks both growing due to cyclic loading and loaded only in tension, as experimentally determined using the stereoimaging technique, have been used to derive equations for the strain distribution. Both logarithmic and power function relations were fitted to the strains and the logarithmic function was found to be the best fit to most data. Materials examined were 7075 and 7091 aluminum alloys, Ti-6Al-4V titanium alloy and austenitic 304 stainless steel.

引用

页码：123 / 132

页数：10

共 15 条

[1] Davidson D. L., 1974, Scanning Electron Microscopy 1974, P927
[2] FATIGUE CRACK TIP PLASTIC STRAIN IN HIGH-STRENGTH ALUMINUM-ALLOYS
DAVIDSON, DL
LANKFORD, J
[J]. FATIGUE OF ENGINEERING MATERIALS AND STRUCTURES, 1980, 3 (04): : 289 - 303
[3] A MODEL FOR FATIGUE CRACK ADVANCE BASED ON CRACK TIP METALLURGICAL AND MECHANICS PARAMETERS
DAVIDSON, DL
[J]. ACTA METALLURGICA, 1984, 32 (05): : 707 - 714
[4] FATIGUE CRACK-GROWTH MECHANICS FOR TI-6AL-4V (RA) IN VACUUM AND HUMID AIR
DAVIDSON, DL
LANKFORD, J
[J]. METALLURGICAL TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 1984, 15 (10): : 1931 - 1940
[5] DAVIDSON DL, 1984, FATIGUE ENG MATER, V7, P29
[6] LOW-FREQUENCY CYCLIC-LOADING STAGE FOR SEM
DAVIDSON, DL
NAGY, A
[J]. JOURNAL OF PHYSICS E-SCIENTIFIC INSTRUMENTS, 1978, 11 (03): : 207 - 210
[7] CRACK-TIP STRESSES AS COMPUTED FROM STRAINS DETERMINED BY STEREOIMAGING
DAVIDSON, DL
WILLIAMS, DR
BUCKINGHAM, JE
[J]. EXPERIMENTAL MECHANICS, 1983, 23 (02) : 242 - 248
[8] THE EFFECT OF WATER-VAPOR ON FATIGUE CRACK TIP MECHANICS IN 7075-T651 ALUMINUM-ALLOY
DAVIDSON, DL
LANKFORD, J
[J]. FATIGUE OF ENGINEERING MATERIALS AND STRUCTURES, 1983, 6 (03): : 241 - 256
[9] DAVIDSON DL, 1979, SCANNING ELECT MICRO, P79
[10] DAVIDSON DL, 1981, NONDESTRUCTIVE EVALU, P299

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