Decoupling transformation for piezoelectric-piezomagnetic fibrous composites with imperfect interfaces

INTERNATIONAL JOURNAL OF SOLIDS AND STRUCTURES

卷:54

Article

Kuo, Hsin-Yi¹  Chen, Chin-Yuan¹ 

[1] Natl Chiao Tung Univ, Dept Civil Engn, Hsinchu 30010, Taiwan

关键词: Effective property;    Piezoelectric-piezomagnetic fibrous composite;    Imperfect interface;    Decoupling transformation;   

DOI  :  10.1016/j.ijsolstr.2014.11.003

来源: Elsevier

【 摘 要 】

We study the effective magnetoelectricity of piezoelectric-piezomagnetic fibrous composites with imperfect interfaces subjected to anti-plane shear deformation coupled to in-plane electromagnetic fields. Two kinds of imperfect interfaces, mechanically stiff and highly electromagnetic conducting interfaces, and mechanically compliant and weakly electromagnetic conducting interfaces, are considered for the phenomenon of contact resistance between the constituents. The decoupling transformation approach previously used in composite media with perfect interfaces is extended to the current configuration. The predicted macroscopic behaviors are in good agreement with the known solutions. It is observed that moduli of the composite with imperfect contacts do not fulfill the compatibility conditions L*La-1Lb - LbLa-1L* = 0, which was supposed to be microstructure independent connections for the two-phase heterogeneous media. Finally, we use the two-level recursive scheme to show the equivalence between the imperfect interfaces and an infinity thin homogeneous interface layer. (C) 2014 Elsevier Ltd. All rights reserved.

【 授权许可】

Free