General solutions of mechanical‐electric‐magnetic fields in magneto‐electro‐elastic solid containing a moving anti‐plane crack and a screw dislocation

Source abstract

In this work, the interaction between a moving anti‐plane crack and a screw dislocation in the magneto‐electro‐elastic material is studied. The exact solutions are derived by the Muskhelishvili theory and the mechanical‐electric‐magnetic fields are presented. Comparing with the recent researching status, the present work has three prominent features. Firstly, both the remote loads with eight possible combinations and the coupling of the mechanical‐electric‐magnetic fields are considered. Secondly, the crack face is assumed to have the general boundary condition which is not the single permeable or impermeable case. Finally, the general solution is derived with the consideration of the crack moving velocity and the screw dislocation. Results presented in this paper would have potential applications on the analysis and design of magneto‐electro‐elastic structures, especially for the influence of microdefects on the initiation and propagation of cracks.