Effects of interface contacts on the magneto electro-elastic coupling for fiber reinforced composites

INTERNATIONAL JOURNAL OF SOLIDS AND STRUCTURES

卷:48

Article

Espinosa-Almeyda, Y.¹  Lopez-Realpozo, J. C.¹  Rodriguez-Ramos, R.¹  Bravo-Castillero, J.¹  Guinovart-Diaz, R.¹  Camacho-Montes, H.³  Sabina, F. J.² 

[1] Univ La Habana, Fac Matemat & Computac, Vedado 10400, Cuba

[2] Univ Cambridge, Ctr Math Sci, Dept Appl Math & Theoret Phys, Cambridge CB3 0WA, England

[3] Univ Autonoma Ciudad Juarez, Inst Ingn & Tecnol, Chih 32310, Mexico

关键词: Fiber composite;    Effective properties;    Magneto electro elastic;    Imperfect contact;   

DOI  :  10.1016/j.ijsolstr.2011.01.034

来源: Elsevier

【 摘 要 】

Imperfect bonding between constituents is studied where displacements, electric and magnetic static potentials are considered to have a jump proportional to the normal component of the mechanical traction, electric displacement and magnetic flux. This condition may model various interface damages or the thin glue layer between two adjacent phases. They are termed as the mechanically compliant, dielectrically weakly capacitance and magnetically weakly inductance at the interface. It is shown that while the more imperfect the interface is, the overall properties become weaker, such as longitudinal shear stiffness, out-of-plane piezoelectric coupling, and magnetoelectric coupling. Out-of-plane piezomagnetic coupling, transverse dielectric permittivity and transverse dielectric permeability exhibit no influence by imperfect bonding. The imperfect interface proposed is mimicked by the springs, capacitors and inductances for the mechanical, electric and magnetic interaction between the phases and are highly sensitive to the interphase properties. The results are compared mainly with the self consistent model reported in the literature and good agreements are shown. (C) 2011 Elsevier Ltd. All rights reserved.

【 授权许可】

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