Theoretical and experimental determination of magnetic stress intensity factors of a crack in a double cantilever beam specimen

K. Yoshimura, Yasuhide Shindo, K. Horiguchi, F. Narita

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

This paper presents the results of an experimental and theoretical investigation of the magnetic fracture behaviour of double cantilever beam (DCB) specimens. DCB tests were conducted on ferritic stainless steel SUS430 in the bore of a superconducting magnet at room temperature. A simple experimental technique using strain gauges was used to determine the stress intensity factor. The experiments show the predicted increase in the stress intensity factor with increasing magnetic field. The theoretical analysis is based on a beam-plate theory for magnetoelastic interactions in a soft ferromagnetic material. Numerical calculations are carried out, and the stress intensity factor is obtained for several values of magnetic field. A comparison of the stress intensity factor is made between theory and experiment, and the agreement is good for the magnetic field considered.

Original languageEnglish
Pages (from-to)213-218
Number of pages6
JournalFatigue and Fracture of Engineering Materials and Structures
Volume27
Issue number3
DOIs
Publication statusPublished - 2004 Mar

Keywords

  • DCB tests
  • Fracture mechanics
  • Magnetoelastic analysis
  • Soft ferromagnetic materials
  • Strain gauge method
  • Stress intensity factor

ASJC Scopus subject areas

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering

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