Magnetoelastic interaction between a soft ferromagnetic elastic half-plane with a crack and a constant magnetic field

The stress state of a magnetoelastic half-plane with a crack is considered. It is assumed that the half-plane is located in a magnetic field, which is parallel to the boundary of the half-plane. Four various boundary conditions for the half-plane are considered. A numerical method is developed to determine the crack-opening displacements and the magnetoelastic stress intensity factor. The effect of the magnetic field and the boundary conditions on the magnetoelastic stress intensity factor are shown graphically and numerically. The case of an edge crack is considered as a particular case. (C) 2000 Elsevier Science Ltd. All rights reserved.