Interfacial crack growth in piezoelectric-piezomagnetic bi-layered structures with a modified mechanical energy release rate criterion

Yan, Zhang; Feng, Wenjie; Zhang, Ch.

doi:10.1016/j.compstruct.2020.113344

Cited by 9 publications

(1 citation statement)

References 46 publications

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“…In the past decades, the properties of electro-magneto-mechanical field at interface crack tips (Gao et al, 2003; Ma et al, 2013), the crack-surface ME boundary conditions (Feng et al, 2011; Ma et al, 2015; Wu et al, 2021; Wünsche et al, 2013) and the fracture criteria for ME composites (Li and Lee, 2010b; Li et al, 2013; Yan et al, 2021) have been systematically investigated. Moreover, according to the deformation mechanism of layered structure, Li and Lee (2010a) ignored the magnetic field in PE layers and the electric field in a PM layer, and studied the effects of PE/PM stiffening on the stress intensity factors of interface crack.…”

Section: Introductionmentioning

confidence: 99%

Fracture behavior of an interface crack in a magnetoelectric sandwich structure under electric field: Effects of the poling directions

Zhao

Liu

Qian

et al. 2022

Journal of Intelligent Material Systems and Structures

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Magnetoelectric (ME) sandwich structure is a common form in device applications. Poling directions of component materials are essential for the improvement of ME device properties. In this paper, the effects of the electric and magnetic poling directions on the interface fracture of a ME sandwich structure are investigated by integral transform and singular integral equation techniques. The expressions of the normalized stress intensity factors (NSIFs) are derived, and some numerical examples are presented. It is found that the poling direction of active layer can greatly affect the interface cracking mode. And the crack propagation can be promoted or impeded by adjusting the applied field. The structure with a larger volume fraction of active material will be more likely to crack.

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