ELASTIC ANALYSIS OF SCREW DISLOCATIONS AND 2 COLLINEAR CRACKS OF DIFFERENT LENGTH

被引：7

作者：

SHIUE, ST ^{[1
]}

LEE, SB ^{[1
]}

机构：

[1] NATL TSING HUA UNIV,DEPT MAT SCI & ENGN,HSINCHU 300,TAIWAN

来源：

JOURNAL OF APPLIED PHYSICS | 1992年 / 71卷 / 03期

关键词：

D O I：

10.1063/1.351287

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The elastic interaction between screw dislocations and two collinear internal cracks of different length has been investigated by the dislocation modeling method. The dislocation distribution to simulate the cracks and the stress field are obtained. From the stress field, the stress intensity factor at the crack tip and the image force on the dislocation have been derived. The dislocations inside the crack also play an important role in fracture. Newton's third law is satisfied in this system. Finally, three special cases are discussed.

引用

页码：1196 / 1203

页数：8

共 26 条

[1] SPREAD OF PLASTIC YIELD FROM A NOTCH
BILBY, BA
COTTRELL, AH
SWINDEN, KH
[J]. PROCEEDINGS OF THE ROYAL SOCIETY OF LONDON SERIES A-MATHEMATICAL AND PHYSICAL SCIENCES, 1963, 272 (1350) : 304 - +
[2] BYRD PF, 1954, HDB ELLIPTIC INTEGRA, P9
[3] DISLOCATION-FREE ZONE MODEL OF FRACTURE
CHANG, SJ
OHR, SM
[J]. JOURNAL OF APPLIED PHYSICS, 1981, 52 (12) : 7174 - 7181
[4] ELASTIC INTERACTION BETWEEN A SCREW DISLOCATION AND SURFACE CRACK
CHU, SNG
[J]. JOURNAL OF APPLIED PHYSICS, 1982, 53 (12) : 8678 - 8685
[5] DISLOCATION-FREE ZONE AT THE CRACK TIP
DAI, SH
LI, JCM
[J]. SCRIPTA METALLURGICA, 1982, 16 (02): : 183 - 188
[6] INTERACTION OF A DISLOCATION WITH A CRACK
ERINGEN, AC
[J]. JOURNAL OF APPLIED PHYSICS, 1983, 54 (12) : 6811 - 6817
[7] A THEORY FOR STABLE CRACK EXTENSION RATES IN DUCTILE MATERIALS
HART, EW
[J]. INTERNATIONAL JOURNAL OF SOLIDS AND STRUCTURES, 1980, 16 (09) : 807 - 823
[8] Head A. K., 1955, AUST J PHYS, V8, P1
[9] HIRTH JP, 1982, THEORY DISLOCATIONS, P109
[10] ELASTIC INTERACTION BETWEEN GENERAL PARALLEL SCREW DISLOCATIONS AND A SURFACE CRACK
JUANG, RR
LEE, S
[J]. JOURNAL OF APPLIED PHYSICS, 1986, 59 (10) : 3421 - 3429

← 1 2 3 →