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SCF of Welded Thick-Walled Tubular Dragline Joints by Effective Notch Stress Method

Citation

Pang, NL and Zhao, XL and Mashiri, FR and Dayawansa, P and Price, JWH, SCF of Welded Thick-Walled Tubular Dragline Joints by Effective Notch Stress Method, Welding in the World, 50 pp. 72-79. ISSN 0043-2288 (2006) [Refereed Article]

Abstract

In Australia, draglines are used extensively in the coal mining industry. The tubular booms of the dragline are susceptible to fatigue cracking due to the large number of cycles they are subjected to during operation. Fatigue cracks may occur at either weld toe or weld root of the dragline joints. This paper acts as the first attempt to use the effective notch stress (ENS) method to determine the notch stress factors (NSFs) of the dragline joints. Only simplified 2D finite element analysis (FEA) was carried out at this stage. It was found that the NSF at the weld toe is higher than the NSF at the weld root for LC(I). For LC(II), the NSF at the weld root is in general higher than the NSF at the weld toe. The NSF results obtained are also used to compare with those obtained by using ENS method in the literature.

Item Details

Item Type:Refereed Article
Research Division:Engineering
Research Group:Civil Engineering
Research Field:Structural Engineering
Objective Division:Construction
Objective Group:Construction Materials Performance and Processes
Objective Field:Metals (e.g. Composites, Coatings, Bonding)
Author:Mashiri, FR (Dr Fidelis Mashiri)
ID Code:45511
Year Published:2006
Deposited By:Engineering
Deposited On:2007-07-23
Last Modified:2011-11-30
Downloads:0

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