A NUMERICAL CREEP ANALYSIS ON THE INTERACTION OF TWIN PARALLEL EDGE CRACKS IN FINITE WIDTH PLATE UNDER TENSION

被引：3

作者：

Katinic, Marko D. ^{[1
]}

Kozak, Drazan V. ^{[2
]}

Pavisic, Mirko N. ^{[3
]}

Konjatic, Pejo I. ^{[2
]}

机构：

[1] Petrokemija Dd, Kutina, Croatia

[2] JJ Univ Osijek, Mech Engn Fac, Slavonski Brod, Croatia

[3] Univ Belgrade, Fac Mech Engn, Belgrade 11001, Serbia

来源：

THERMAL SCIENCE | 2014年 / 18卷

关键词：

creep; twin cracks; interaction; C* integral; STRESS INTENSITY FACTORS; SURFACE CRACKS; FATIGUE;

D O I：

10.2298/TSCI130212181K

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

In many practical situations, high-temperature structures and components contain more than one crack An interaction of such multiple cracks has significant influence on the service life of structures and components. In this paper, the interaction of two identical parallel edge cracks in a finite plate subjected to the remote tension is numerically analyzed. The results show that interaction effect of multiple cracks at creep regime is obviously greater than at linear elastic regime. The intensity of creep crack interaction increases with increasing creep exponent m. The crack intensity and the crack interaction limit at creep regime depend on crack distance ratio d/a, crack width ratio a/W and creep exponent m.

引用

页码：S159 / S168

页数：10

共 26 条

[1]

Agatonovic P, 2013, STRUCT INTEGR LIFE, V13, P99

[2]

American Petroleum Institute, 2007, API 579-1/ASME FFS-1

[3]

[Anonymous], 2007, Boiler and Pressure Vessel Code, Section VIII-Rules for Construction of Pressure Vessels, Division 2-Alternative Rules

[4]

[Anonymous], ABAQUS US MAN VERS 6

[5]

[Anonymous], 2005, BS7910

[6]

[Anonymous], 2004, GBT19624

[7]

British Energy Generation Ltd, 2006, ASS INT STRUCT CONT, V4

[8]

Brown W.F., 1966, ASTM SPEC TECH PUBL, P12

[9]

Camagic I, 2013, TEH VJESN, V20, P205

[10] A numerical analysis on the interaction of twin coplanar flaws [J].

Carpinteri, A ;

Brighenti, R ;

Vantadori, S .

ENGINEERING FRACTURE MECHANICS, 2004, 71 (4-6) :485-499

← 1 2 3 →