Biaxial stress measurement using a magnetic probe based on the law of approach to saturation magnetization

T. Utsunomiya, H. Nishizawa, K. Kaneta

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

This paper is concerned with the development of a magnetic technique for nondestructive evaluation of stress in carbon steels. The method proposed is based on the linear dependence on the applied stress of a parameter determined from the law of approach to saturation magnetization. Biaxial stresses in a cruciform specimen are measured by using the proposed method with a magnetic probe. The experiment has shown that the magnetic parameter varies linearly with the principal stresses, σ1 and σ2, such that m1 = A + B (σ1 - 0.5σ2), where m1 is the magnetic parameter in the direction of σ1, and A and B are constants. This indicates that the principal stresses can be determined directly from the measured values in the principal directions. The formula is further extended to the case in which the measuring direction is not the principal direction of the biaxial stress state.

Original languageEnglish
Pages (from-to)91-94
Number of pages4
JournalNDT and E International
Volume24
Issue number2
DOIs
Publication statusPublished - Apr 1991

Fingerprint

magnetic probes
stress measurement
Stress measurement
Saturation magnetization
saturation
magnetization
carbon steels
Carbon steel
Direction compound
evaluation

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanical Engineering

Cite this

Biaxial stress measurement using a magnetic probe based on the law of approach to saturation magnetization. / Utsunomiya, T.; Nishizawa, H.; Kaneta, K.

In: NDT and E International, Vol. 24, No. 2, 04.1991, p. 91-94.

Research output: Contribution to journalArticle

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