Screw Dislocation Interacting with Lip-shaped Crack in Magnetoelectroelastic Media

doi:10.19596/j.cnki.1001-246x.8344

Abstract

Abstract:

Interreaction between a penetrating lip-shaped crack and a screw dislocation in magnetoelectroelastic media is investigated with Muskhelishvili techniques and perturbation technique. Analytic solutions for stress, magnetic induction and electric displacement caused by dislocation and lip-shaped crack in magnetoelectroelastic solid are derived. By using the generalized Peach-Koehler formula, image forces acting on a dislocation are calculated. Regularities of field intensity factors, generalized stress field and image force at different dislocation positions are obtained with numerical examples.

Key words: magnetoelectroelastic media, screw dislocations, lip-shaped crack, field intensity factors, Muskhelishvili techniques

Huaimin GUO, Guozhong ZHAO, Lijuan JIANG. Screw Dislocation Interacting with Lip-shaped Crack in Magnetoelectroelastic Media[J]. Chinese Journal of Computational Physics, 2022, 39(1): 33-40.

Figures/Tables 10

References 29

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