Three-point bending fracture behavior of cracked giant magnetostrictive materials under magnetic fields

Fumio Narita, Koji Shikanai, Yasuhide Shindo, Kotaro Mori

Research output: Contribution to journalArticlepeer-review

9 Citations (Scopus)

Abstract

This paper numerically and experimentally investigated the three-point bending fracture behavior of cracked giant magnetostrictive materials under magnetic fields. Three-point bending fracture tests were carried out using the single-edge precracked-beam (SEPB) specimens, and the fracture loads were measured under magnetic fields. The crack was created normal to the direction of easy magnetization. Plane strain finite element analysis (FEA) was also performed, and the effect of magnetic fields on the energy release rate and on the apparent fracture toughness (critical energy release rate obtained using the fracture load) was discussed in detail. To the author's knowledge, this work is the first attempt to study the effect of magnetic fields on the fracture behavior of giant magnetostrictive materials.

Original languageEnglish
Pages (from-to)1454-1460
Number of pages7
JournalJournal of Testing and Evaluation
Volume44
Issue number4
DOIs
Publication statusPublished - 2016 Jul 1

Keywords

  • Energy release rate
  • Finite element method
  • Fracture toughness
  • Giant magnetostrictive materials
  • Magnetic field
  • Material testing
  • Mesomechanics
  • Smart materials and structures

ASJC Scopus subject areas

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

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