Fatigue analysis of spot-welded joint for automative structures

M. M. Rahman, A. K. Arrifin, Mohd. Jailani Mohd Nor, Shahrum Abdullah

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

This paper presents the fatigue analysis of spot-weld joints for automative structures to predict the lifetime and location of the weakest spot-welds due to the imposed loading conditions. A simple model was used to illustrate the technique of spot-weld fatigue analysis. Finite element model and analysis were carried out utilizing the finite element analysis commercial codes. Linear elastic finite element analysis was carried out to predict the stress state along the weld direction. It can be seen from the results that the predicted life greatly influence the sheet thickness, spot diameter and loading conditions of the model. Acquired results were shown the predicted life for the nugget and the two sheets around the circumference of the spot-weld at which angle the worst damage occurs. It is also observed that the sheet-2 appeared the maximum stress range among the model. The spot-welding fatigue analysis techniques are awfully essential for automotive structure design.

Original languageEnglish
Pages (from-to)173-180
Number of pages8
JournalSDHM Structural Durability and Health Monitoring
Volume4
Issue number3
Publication statusPublished - 2008

Fingerprint

Welds
Fatigue of materials
Finite element method
Spot welding

Keywords

  • Finite element analysis
  • Sheet thickness
  • Sot-weld structure
  • Spot diameter
  • Variable amplitude loading

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Building and Construction

Cite this

Fatigue analysis of spot-welded joint for automative structures. / Rahman, M. M.; Arrifin, A. K.; Mohd Nor, Mohd. Jailani; Abdullah, Shahrum.

In: SDHM Structural Durability and Health Monitoring, Vol. 4, No. 3, 2008, p. 173-180.

Research output: Contribution to journalArticle

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