Analysis of multiple moving mode-III cracks in a functionally graded magnetoelectroelastic half-plane

作者：Ayatollahi Mojtaba^*; Monfared Mojtaba Mahmoudi; Nourazar Mahsa

来源：Journal of Intelligent Material Systems and Structures, 2017, 28(19): 2823-2834.

DOI：10.1177/1045389X17698593

• Multiple moving cracks
• functionally graded magnetoelectroelastic
• singular integral equations
• field intensity factors
• distributed dislocation technique

This study deals with the interaction of multiple moving mode-III cracks in a functionally graded magnetoelectroelastic half-plane. The cracks are assumed to be either magneto-electrically impermeable or permeable. First, the singular stress, electric displacement, and magnetic induction fields in a half-plane with dislocations are obtained in closed form by the means of complex Fourier transform and then the problem is reduced to a system of singular integral equations in a set of unknown functions representing dislocation densities. These integral equations are Cauchy singular and are solved numerically to determine field intensity factors for multiple moving cracks. The results show that the crack velocity has great effect on the field intensity factors.

• 出版日期2017-11