Fatigue resistance of MAG welded steel elements

被引：29

作者：

Chiarelli, M

Lanciotti, A

Sacchi, M

机构：

[1] Univ Pisa, Dept Aerosp Engn, I-56126 Pisa, Italy

[2] Breda Railway Construct, I-51100 Pistoia, Italy

来源：

INTERNATIONAL JOURNAL OF FATIGUE | 1999年 / 21卷 / 10期

关键词：

fatigue; welded joints; Fe510;

D O I：

10.1016/S0142-1123(99)00080-8

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

The present paper describes the results of a research programme carried out to assess the fatigue properties of MAG (Metal Active Gas) welded elements, built in Fe510 D1 steel. Tests on both small and large specimens were carried out to evaluate the effects, on fatigue resistance, of the residual stresses produced by the welding process. The joints examined were butt welded and longitudinally welded. Crack propagation tests were also carried out on welded plates. The data available, together with results taken from the literature, allowed us to analyse the fatigue test results on the basis of the methodologies of Fracture Mechanics; by calibrating the initial defects using the results of the tests carried out on small specimens, a good prediction of the fatigue resistance of large specimens was obtained. (C) 1999 Elsevier Science Ltd. All rights reserved.

引用

页码：1099 / 1110

页数：12

共 22 条

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