An experimental and finite element study of the low-cycle fatigue failure of a galvanised steel lighting column

James Wood, Louise A. Alexander, Ian Taylor

Research output: Contribution to conferencePaper

Abstract

This paper presents the results of a low-cycle fatigue test on a lighting column. The wind induced vibration phenomena responsible for low cycle fatigue in such structures is discussed and the failure mechanism is examined. It was initially thought that poor quality weld detail was the major influence on the fatigue life of such columns. However, the significant role of the galvanised coating in the failure process is also highlighted. The experimental results are compared with those from a detailed 3D finite element model. Various methods of calculating hot-spot stresses at welded joints are examined and use of a simple peak stress removal approach is shown to produce significantly different values compared with the other methods examined.
LanguageEnglish
Number of pages19
Publication statusPublished - 16 Jun 2009
EventNAFEMS World Congress and Exhibition - Crete, Greece
Duration: 16 Jun 200919 Jun 2009

Conference

ConferenceNAFEMS World Congress and Exhibition
CityCrete, Greece
Period16/06/0919/06/09

Fingerprint

Steel
Lighting
Fatigue of materials
Welds
Coatings

Keywords

  • low-cycle fatigue
  • fea
  • test
  • validation
  • lighting column
  • welds
  • galvanizing

Cite this

Wood, J., Alexander, L. A., & Taylor, I. (2009). An experimental and finite element study of the low-cycle fatigue failure of a galvanised steel lighting column. Paper presented at NAFEMS World Congress and Exhibition, Crete, Greece, .
Wood, James ; Alexander, Louise A. ; Taylor, Ian. / An experimental and finite element study of the low-cycle fatigue failure of a galvanised steel lighting column. Paper presented at NAFEMS World Congress and Exhibition, Crete, Greece, .19 p.
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abstract = "This paper presents the results of a low-cycle fatigue test on a lighting column. The wind induced vibration phenomena responsible for low cycle fatigue in such structures is discussed and the failure mechanism is examined. It was initially thought that poor quality weld detail was the major influence on the fatigue life of such columns. However, the significant role of the galvanised coating in the failure process is also highlighted. The experimental results are compared with those from a detailed 3D finite element model. Various methods of calculating hot-spot stresses at welded joints are examined and use of a simple peak stress removal approach is shown to produce significantly different values compared with the other methods examined.",
keywords = "low-cycle fatigue, fea, test, validation, lighting column, welds, galvanizing",
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Wood, J, Alexander, LA & Taylor, I 2009, 'An experimental and finite element study of the low-cycle fatigue failure of a galvanised steel lighting column' Paper presented at NAFEMS World Congress and Exhibition, Crete, Greece, 16/06/09 - 19/06/09, .

An experimental and finite element study of the low-cycle fatigue failure of a galvanised steel lighting column. / Wood, James; Alexander, Louise A.; Taylor, Ian.

2009. Paper presented at NAFEMS World Congress and Exhibition, Crete, Greece, .

Research output: Contribution to conferencePaper

TY - CONF

T1 - An experimental and finite element study of the low-cycle fatigue failure of a galvanised steel lighting column

AU - Wood, James

AU - Alexander, Louise A.

AU - Taylor, Ian

PY - 2009/6/16

Y1 - 2009/6/16

N2 - This paper presents the results of a low-cycle fatigue test on a lighting column. The wind induced vibration phenomena responsible for low cycle fatigue in such structures is discussed and the failure mechanism is examined. It was initially thought that poor quality weld detail was the major influence on the fatigue life of such columns. However, the significant role of the galvanised coating in the failure process is also highlighted. The experimental results are compared with those from a detailed 3D finite element model. Various methods of calculating hot-spot stresses at welded joints are examined and use of a simple peak stress removal approach is shown to produce significantly different values compared with the other methods examined.

AB - This paper presents the results of a low-cycle fatigue test on a lighting column. The wind induced vibration phenomena responsible for low cycle fatigue in such structures is discussed and the failure mechanism is examined. It was initially thought that poor quality weld detail was the major influence on the fatigue life of such columns. However, the significant role of the galvanised coating in the failure process is also highlighted. The experimental results are compared with those from a detailed 3D finite element model. Various methods of calculating hot-spot stresses at welded joints are examined and use of a simple peak stress removal approach is shown to produce significantly different values compared with the other methods examined.

KW - low-cycle fatigue

KW - fea

KW - test

KW - validation

KW - lighting column

KW - welds

KW - galvanizing

M3 - Paper

ER -

Wood J, Alexander LA, Taylor I. An experimental and finite element study of the low-cycle fatigue failure of a galvanised steel lighting column. 2009. Paper presented at NAFEMS World Congress and Exhibition, Crete, Greece, .