Influence of flux cored arc welded cruciform joint dimensions on fatigue life of ASTM 517 'F' grade steels

被引：17

作者：

Balasubramanian, V ^{[1
]}

Guha, B ^{[1
]}

机构：

[1] Indian Inst Technol, Dept Engn Met, Madras 600036, Tamil Nadu, India

来源：

INTERNATIONAL JOURNAL OF PRESSURE VESSELS AND PIPING | 1998年 / 75卷 / 10期

关键词：

arc welded; mathematical model; flux cored; cruciform joint;

D O I：

10.1016/S0308-0161(98)00080-5

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A mathematical model has been developed to predict the fatigue life of flux-cored are-welded (FCAW) cruciform joints containing lack of penetration (LOP) defects. High strength, quenched and tempered steel (ASTM 517 'F' grade) has been used as the base material throughout the investigation. The design of experiments (DoE) concept has been used to optimize the required number of experiments. Fatigue experiments have been conducted in a mechanical resonance pulsator, under constant amplitude loading. The model has been developed by use of the Response Surface Method (RSM). Analysis of variance (ANOVA) techniques have been applied to find the significant factors. The adequacy of the developed model has been checked by calculating the correlation coefficient. By using the developed model, the fatigue life of FCAW cruciform joints containing LOP defects can be predicted at a 95% confidence level. The influence of cruciform joint dimensions on fatigue life have been discussed. (C) 1998 Elsevier Science Ltd. All rights reserved.

引用

页码：765 / 772

页数：8

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