Notch stress factor of welded thick-walled tubular dragline joints by effective notch stress method

Neme L. Pang; Xiao-Ling Zhao; Fidelis R. Mashiri; Daya P. Dayawansa; John W. H. Price

Notch stress factor of welded thick-walled tubular dragline joints by effective notch stress method

Neme L. Pang
, Xiao-Ling Zhao
, Fidelis R. Mashiri
, Daya P. Dayawansa
, John W. H. Price

School of Engineering, Design & Built Environment

Research output: Chapter in Book / Conference Paper › Conference Paper

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), 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.

Original language	English
Title of host publication	Tubular Structures XI: Proceedings of the 11th International Symposium and IIW International Conference on Tubular Structures, Québec City, Canada, 31 August-2 September 2006 (ISTS11)
Publisher	Taylor & Francis
Number of pages	8
ISBN (Print)	9780415402804
Publication status	Published - 2006
Event	International Symposium on Tubular Structures - Duration: 1 Jan 2012 → …

Conference

Conference	International Symposium on Tubular Structures
Period	1/01/12 → …

Keywords

thick-walled structures
welded joints
cracking
fatigue
coal-mining machinery
draglines

Cite this

Pang, N. L., Zhao, X.-L., Mashiri, F. R., Dayawansa, D. P., & Price, J. W. H. (2006). Notch stress factor of welded thick-walled tubular dragline joints by effective notch stress method. In Tubular Structures XI: Proceedings of the 11th International Symposium and IIW International Conference on Tubular Structures, Québec City, Canada, 31 August-2 September 2006 (ISTS11) Taylor & Francis.

Pang, Neme L. ; Zhao, Xiao-Ling ; Mashiri, Fidelis R. et al. / Notch stress factor of welded thick-walled tubular dragline joints by effective notch stress method. Tubular Structures XI: Proceedings of the 11th International Symposium and IIW International Conference on Tubular Structures, Québec City, Canada, 31 August-2 September 2006 (ISTS11). Taylor & Francis, 2006.

@inproceedings{e02e47628e1e4667a661a7608b78c211,

title = "Notch stress factor of welded thick-walled tubular dragline joints by effective notch stress method",

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), 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.",

keywords = "thick-walled structures, welded joints, cracking, fatigue, coal-mining machinery, draglines",

author = "Pang, \{Neme L.\} and Xiao-Ling Zhao and Mashiri, \{Fidelis R.\} and Dayawansa, \{Daya P.\} and Price, \{John W. H.\}",

year = "2006",

language = "English",

isbn = "9780415402804",

booktitle = "Tubular Structures XI: Proceedings of the 11th International Symposium and IIW International Conference on Tubular Structures, Qu{\'e}bec City, Canada, 31 August-2 September 2006 (ISTS11)",

publisher = "Taylor \& Francis",

address = "United Kingdom",

note = "International Symposium on Tubular Structures ; Conference date: 01-01-2012",

}

Pang, NL, Zhao, X-L, Mashiri, FR, Dayawansa, DP & Price, JWH 2006, Notch stress factor of welded thick-walled tubular dragline joints by effective notch stress method. in Tubular Structures XI: Proceedings of the 11th International Symposium and IIW International Conference on Tubular Structures, Québec City, Canada, 31 August-2 September 2006 (ISTS11). Taylor & Francis, International Symposium on Tubular Structures, 1/01/12.

Notch stress factor of welded thick-walled tubular dragline joints by effective notch stress method. / Pang, Neme L.; Zhao, Xiao-Ling; Mashiri, Fidelis R. et al.
Tubular Structures XI: Proceedings of the 11th International Symposium and IIW International Conference on Tubular Structures, Québec City, Canada, 31 August-2 September 2006 (ISTS11). Taylor & Francis, 2006.

Research output: Chapter in Book / Conference Paper › Conference Paper

TY - GEN

T1 - Notch stress factor of welded thick-walled tubular dragline joints by effective notch stress method

AU - Pang, Neme L.

AU - Zhao, Xiao-Ling

AU - Mashiri, Fidelis R.

AU - Dayawansa, Daya P.

AU - Price, John W. H.

PY - 2006

Y1 - 2006

N2 - 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), 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.

AB - 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), 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.

KW - thick-walled structures

KW - welded joints

KW - cracking

KW - fatigue

KW - coal-mining machinery

KW - draglines

UR - http://handle.uws.edu.au:8081/1959.7/489279

M3 - Conference Paper

SN - 9780415402804

BT - Tubular Structures XI: Proceedings of the 11th International Symposium and IIW International Conference on Tubular Structures, Québec City, Canada, 31 August-2 September 2006 (ISTS11)

PB - Taylor & Francis

T2 - International Symposium on Tubular Structures

Y2 - 1 January 2012

ER -

Notch stress factor of welded thick-walled tubular dragline joints by effective notch stress method

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