抄録
The effect of magnetic fields on the stress intensity factors in soft ferromagnetic plates under uniaxial tension is investigated. Tension tests were conducted on nickel-iron soft magnetic materials with center-cracked plate specimen geometries in a 10 T cryocooler-cooled superconducting magnet at room temperature. Strain gages were used to evaluate the magnetic stress intensity factors. The existence of the magnetic field produces larger values of the stress intensity factor. This effect becomes more pronounced with increasing the magnetic susceptibility.
