Applicability of the crack-face electromagnetic boundary conditions for fracture of magnetoelectroelastic materials

By Baolin Wang, Yiu-Wing Mai. 2007

206 citations recorded by the source corpus.

This paper discusses the different electromagnetic boundary conditions on the crack-faces in magnetoelectroelastic materials, which possess coupled piezoelectric, piezomagnetic and magnetoelectric effects. A notch of finite thickness in these materials containing air (or vacuum) is also addressed. Four ideal crack-face electromagnetic boundary condition assumptions, that is, (a) electrically and magnetically impermeable crack, (b) electrically impermeable and magnetically permeable crack, (c) electrically permeable and magnetically impermeable crack and (d) electrically and magnetically permeable crack, are investigated separately. The influence of notch thickness on the field intensity factors at notch tips and the electromagnetic field inside the notch are obtained in closed-form. The results are compared with the ideal crack solutions. Applicability of crack-face electromagnetic boundary condition assumptions is discussed.

Subfields: Mechanical Engineering, Mechanics of Materials

View Paper: https://www.semanticscholar.org/paper/533ea7efb697066f2ff417f0a285f74310db7755

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In Mechanics of Materials

Citations in the corpus

Analyses of Circular Magnetoelectroelastic Plates with Functionally Graded Material Properties (2015, methodology): “The material coefficients at the plate bottom surface corresponding to the BaTiO3-CoFe2O4 composite are given by Wang and Mai [24]: c11 = 22.6 × 1010 Nm−2, c13 = 12.4 × 1010 Nm−2, c33 = 21.6 × 1010 Nm−2 , c44 = 4.4 × 1010 Nm−2 c12 = 12.5 × 1010 Nm−2, e15 = 5.8 Cm−2, e31 = −2.2 Cm−2, e33 = 9.3 Cm−2, ”