Crack problem for an inhomogeneous orthotropic superconducting slab under an electromagnetic force

By assuming that the material properties are one-dimensional, this paper investigates an internal crack problem for an inhomogeneous orthotropic slab of superconductors. The stress intensity factors are obtained analytically and computed for the case of a decreasing field. The numerical results show the effects of the applied magnetic field, the inhomogeneous parameters and the crack configuration on the fracture behavior of a superconducting slab. This work should be helpful for both the design and application of superconductors.

► An internal crack in an inhomogeneous orthotropic superconducting slab is studied.
► SIFs are obtained analytically and computed for the case of a decreasing field.
► The effects of both applied magnetic field and graded index on SIFs are analyzed.