Journal Published Online: 25 August 2015
Volume 44, Issue 4

Three-Point Bending Fracture Behavior of Cracked Giant Magnetostrictive Materials Under Magnetic Fields

CODEN: JTEVAB

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.

Author Information

Narita, Fumio
Department of Materials Processing, Graduate School of Engineering, Tohoku Univ., Sendai, JP
Shikanai, Koji
Department of Materials Processing, Graduate School of Engineering, Tohoku Univ., Sendai, JP
Shindo, Yasuhide
Department of Materials Processing, Graduate School of Engineering, Tohoku Univ., Sendai, JP
Mori, Kotaro
Faculty of Engineering, Department of Mechanical Engineering, Ibaraki University, Hitachi, JP
Pages: 7
Price: $25.00
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Details
Stock #: JTE20140439
ISSN: 0090-3973
DOI: 10.1520/JTE20140439