Please use this identifier to cite or link to this item:
Title: Influence of weld toe radii on fatigue life prediction
Authors: Pang, John Hock Lye
Tsang, Kin Shun
Hoh, Hsin Jen
Keywords: DRNTU::Engineering::Mechanical engineering
Fatigue Life Prediction
Four-point Bend Fatigue
Issue Date: 2018
Source: Tsang, K. S., Pang, J. H. L., & Hoh, H. J. (2018). Influence of Weld Toe Radii on Fatigue Life Prediction. MATEC Web of Conferences, 165, 22025-. doi:10.1051/matecconf/201816522025
Series/Report no.: MATEC Web of Conferences
Abstract: A study was carried out to investigate the influence of the weld toe radii on the fatigue strength of butt welded joints loaded in bending and tension. Fatigue analysis starting from weld toe cracks in marine and offshore welded pipe specimens were conducted using cut-out four-point bend fatigue test specimens. Fatigue life can be enhanced by reducing the local stress concentration generated by weld toe radius effects. This study investigated the effect of different weld toe radii on the stress intensity factor at the region of the weld toe through Finite Element Analysis (FEA). FEA was used to model a butt welded steel plate extracted from a pipe subject to tension and four-point bend loading. Semi-elliptical surface (SESC) cracks were modeled at the weld toe region with different SESC crack depth and surface crack length. Four weld toe radii and two modes of loading were investigated. The stress intensity factors, weald toe magnification factors, or Mkc and Mka are reported and used for fatigue life prediction.
DOI: 10.1051/matecconf/201816522025
Rights: © 2018 The Author(s) (MATEC Web of Conferences) (Published by EDP Sciences). This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (
Fulltext Permission: open
Fulltext Availability: With Fulltext
Appears in Collections:MAE Journal Articles

Files in This Item:
File Description SizeFormat 
Influence of Weld Toe Radii on Fatigue Life Prediction.pdf1.01 MBAdobe PDFThumbnail

Citations 50

Updated on Mar 8, 2021

Page view(s)

Updated on Apr 21, 2021

Download(s) 50

Updated on Apr 21, 2021

Google ScholarTM




Items in DR-NTU are protected by copyright, with all rights reserved, unless otherwise indicated.