Transient fracture of a layered magnetoelectroelastic medium

Bao-Lin Wang, Jie-Cai Han, Shan-Yi Du

    Research output: Contribution to journalArticlepeer-review

    29 Citations (Scopus)

    Abstract

    Most magnetoelectroelastic composites were developed in the form of a composite laminate by alternating the ferromagnetic layers and ferroelectric layers during stacking. Presence of interfacial crack may influence the magneto-electro-mechanical coupling behavior of magnetoelectroelastic materials considerably. This paper describes a method to analyze the transient response of a layered magnetoelectroelastic medium of finite size with an interface crack. Based on Fourier and Laplace transforms, the boundary value problem is reduced to a system of generalized singularity integral equations in the Laplace transform domain. By utilized numerical Laplace inversion, the time-dependent full field solutions are obtained in the time domain. Effects of medium size, crack-face electric and magnetic boundary conditions on the dynamic crack tip fields are studied. By investigating an interface notch of finite gap thickness, the electric and magnetic properties of the medium inside the notch are included in the analytical model so that the applicability of crack-face electric and magnetic boundary conditions on the transient response of the magnetoelectroelastic medium can be investigated.
    Original languageEnglish
    Pages (from-to)354-364
    Number of pages11
    JournalMechanics of Materials
    Volume42
    Issue number3
    DOIs
    Publication statusPublished - 2010

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