A study on influence of magnetic field on fracture of ferromagnetic material due to magneto-mechanical coupling effects

被引：2

作者：

Xie, Zheng ^{[1
]}

Shi, Pengpeng ^{[1
]}

Li, Qun ^{[1
]}

Chen, Zhenmao ^{[1
]}

机构：

[1] Xi An Jiao Tong Univ, Shaanxi Engn Res Ctr NDT & Struct Integr Evaluat, State Key Lab Strength & Vibrat Mech Struct, 28 West Xianning Rd, Xian 710049, Shaanxi, Peoples R China

来源：

INTERNATIONAL JOURNAL OF APPLIED ELECTROMAGNETICS AND MECHANICS | 2019年 / 59卷 / 01期

关键词：

Magnetoelastic; magnetostriction effect; stress intensity factor; ferromagnetic material; CONTINUUM DAMAGE MODEL; DUCTILE FRACTURE;

D O I：

10.3233/JAE-171156

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

The influence of magnetic field on stress intensity factor at crack tips of a ferromagnetic material is studied in this paper. A method using a sequential coupling algorithm has been applied to solve this coupled problem explicitly. In order to realize the iterative calculation of the stress intensity factor, a semi-analytical solution of the magnetic field perturbation due to structural deformation near by the crack tips is derived at first. The Maxwell stress, the magnetostriction strain and the nonlinear mechanical property of the magnetic material are taken into consideration to cope with the magneto-mechanical coupling effects. Results of perturbed magnetic field and distribution of magnetostriction strain at the crack tip are obtained and being evaluated quantitatively. Finally, the effects of the applied external magnetic field on stress intensity factor of a crack in a ferromagnetic material are discussed based on the numerical results.

引用

页码：235 / 245

页数：11