Fatigue life prediction of shielded metal are welded cruciform joints containing LOP defects by a mathematical model

被引：6

作者：

Balasubramanian, V ^{[1
]}

Guha, B ^{[1
]}

机构：

[1] Indian Inst Technol, Dept Met Engn, Mech Testing Lab, Madras 600036, Chennai, India

来源：

INTERNATIONAL JOURNAL OF PRESSURE VESSELS AND PIPING | 1999年 / 76卷 / 05期

关键词：

shielded metal arc welding; lack of penetration; cruciform joint; fatigue life; ANOVA;

D O I：

10.1016/S0308-0161(98)00137-9

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A new mathematical model is developed to predict the fatigue life of Shielded Metal Are Welded (SMAW) cruciform joints containing Lack of Penetration (LOP) defect. High strength, quenched and tempered steel (ASTM 517 'F' Grade) is used as the base material throughout the investigation. Four factors, five level, central composite, rotatable design matrix is used to optimise the required number of experiments. Fatigue experiments have been conducted in a mechanical resonance pulsator, under constant amplitude loading. The model is developed by Response Surface Method (RSM). Analysis of Variance (ANOVA) technique is applied to check the validity of the model. Student's t-test is utilised to find out the significant factors. The effect of joint dimensions on fatigue life have been analysed in detail. (C) 1999 Elsevier Science Ltd. All rights reserved.

引用

页码：283 / 290

页数：8

共 18 条

[1] Effect of L/Tp ratio on fatigue life prediction of SMAW cruciform joints of ASTM 517 'F' Grade steels [J].

Balasubramanian, V ;

Guha, B .

INTERNATIONAL JOURNAL OF PRESSURE VESSELS AND PIPING, 1998, 75 (13) :907-918

[2] Influence of flux cored arc welded cruciform joint dimensions on fatigue life of ASTM 517 'F' grade steels [J].

Balasubramanian, V ;

Guha, B .

INTERNATIONAL JOURNAL OF PRESSURE VESSELS AND PIPING, 1998, 75 (10) :765-772

[3]

BLODGETT OW, 1992, WELD J, V71, P39

[4]

Box GEP., 1978, Statistics for experimenters

[5] FATIGUE ANALYSIS AND PREDICTION IN FILLET WELDED-JOINTS IN THE LOW THICKNESS RANGE [J].

FERREIRA, JA ;

BRANCO, CM .

FATIGUE & FRACTURE OF ENGINEERING MATERIALS & STRUCTURES, 1990, 13 (03) :201-212

[6] INFLUENCE OF WELD AND PLATE GEOMETRY ON THE FATIGUE-STRENGTH OF CRUCIFORM JOINTS [J].

FERREIRA, JM ;

BRANCO, CM .

THEORETICAL AND APPLIED FRACTURE MECHANICS, 1988, 9 (01) :23-32

[7]

FRANK KH, 1979, J STRUCT DIV-ASCE, V105, P1727

[8] A NEW FRACTURE-MECHANICS METHOD TO PREDICT THE FATIGUE LIFE OF WELDED CRUCIFORM JOINTS [J].

GUHA, B .

ENGINEERING FRACTURE MECHANICS, 1995, 52 (02) :215-229

[9]

HOBBACHER A, 1988, IIWXII126688SV65988

[10] FATIGUE ANALYSIS OF MANUFACTURING DEFECTS IN WELDMENTS [J].

JAKUBCZAK, H ;

GLINKA, G .

INTERNATIONAL JOURNAL OF FATIGUE, 1986, 8 (02) :51-57

← 1 2 →