Influences of the remanent polarization and Maxwell stress in surrounding medium on a moving anti-plane crack between two dissimilar piezoelectric solids

• The remanent polarization and remote stress load can enhance the stress intensity factor.
• Influences of the Maxwell stress become more obvious for larger remanent polarizations.
• Fracture properties can be obviously changed by the remanent polarization and Maxwell stress.

In this work, it is focused on the problems that the influences of the remanent polarization and Maxwell stress in the surrounding medium on a moving anti-plane interfacial crack between two dissimilar piezoelectric materials. By the Fourier and its inverse transforms, it is converted to two pairs of dual integral equations. The closed-form solutions of the intensity factors of the stress and electric displacement are derived. It can be observed that the difference between the moving crack and static case can be reduced by the remanent polarization. Influences of the Maxwell stress become more obvious for the systems with larger remanent polarizations. The fracture properties of the moving interfacial crack between two dissimilar piezoelectric solids can be obviously changed by the remanent polarization and Maxwell stress.