Influence of Specimen Size on Fatigue Crack Initiation of Welded HY100 Steel

Abstract

The assumption of a statistical distribution of the flaws in a component leads to a prediction of a correlation between crack initiation life and the size of a fatigue loaded part. The influence of the specimen size on the fatigue crack initiation behaviour was analysed for two series of welded HY 100 steel plates of different widths. The weldments were prepared with E12018M2 electrodes. The prediction of the number of cycles to crack initiation and of the allowable stresses for samples of a different size agreed well with the experimental results. Keywords: Welding procedure, Metallography, Welded plates, Crack initiation, Canada.

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Document Details

Document Type
Technical Report
Publication Date
Jan 01, 1988
Accession Number
ADA196219

Entities

People

  • Wolfgang Kreuzer

Organizations

  • Defence Research and Development Canada

Tags

Communities of Interest

  • Ground and Sea Platforms

DTIC Thesaurus Topics

  • Chemical Analysis
  • Chemistry
  • Cracks
  • Distribution Functions
  • Drug Abuse
  • Fatigue Life
  • Fatigue Tests (Mechanics)
  • Materials
  • Measurement
  • Mechanical Properties
  • Microhardness
  • Statistical Analysis
  • Statistical Distributions
  • Weld Metal
  • Welded Joints
  • Welding
  • Welds

Fields of Study

  • Materials science

Readers

  • Materials Science (Mechanical Engineering).
  • Metallurgy
  • Statistical inference.