Interfacial imperfection coupling model with application to the in-plane fracture problem of a multiferroic composite

Interfacial imperfection coupling model with application to the in-plane fracture problem of a multiferroic composite
复制标题

界面缺陷耦合模型在多铁复合材料面内断裂问题中的应用

DOI:
10.1016/j.ijsolstr.2014.11.010
复制
发表时间:
2015-02
影响因子:
3.6
通讯作者:
董丽虹
董丽虹
中科院分区:
工程技术2区
文献类型:
--
作者:
李永东;熊涛;董丽虹

文献摘要

参考文献

被引文献

相似文献

通过对弹簧模型的推广,并参考电磁弹本构关系,提出了一种描述界面缺陷的耦合模型。作为应用,对由铁磁层、铁电层和非理想界面区组成的多铁性复合材料进行了面内断裂分析。利用Fourier积分变换和绿色函数方法,导出了裂纹的Cauchy奇异积分方程。机械应变能释放率的数值结果提供调查界面缺陷及其耦合的影响。研究表明,缺陷耦合对智能结构的断裂行为有显著的影响,因此在研究这类智能结构的力学问题时有必要考虑缺陷耦合的影响。
A coupling model is proposed to characterize interfacial imperfections by generalizing the spring model and referring to the magneto-electro-elastic constitutive relations. As an application, in-plane fracture analysis is performed on a multiferroic composite, which consists of a ferromagnetic layer, a ferroelectric layer and an imperfect interfacial region. The methods of Fourier integral transform and Green’s function are employed to derive the Cauchy singular integral equations for the cracks. Numerical results of the mechanical strain energy release rate are provided to survey the effects of interfacial imperfections and their couplings. It is found that imperfection couplings affect the fracture behavior remarkably and so it is necessary to consider them in the mechanical problems of this kind of smart structures.
DOI: 10.1080/09500839.2013.793850
发表时间: 2013-06
影响因子: 1.2
作者:
J. A. Otero;R. Rodríguez‐Ramos;G. Monsivais;C. Stern;F. Lebon
通讯作者: J. A. Otero;R. Rodríguez‐Ramos;G. Monsivais;C. Stern;F. Lebon
DOI: 10.2307/3608787
发表时间: 1955-09
期刊: The Mathematical Gazette
影响因子: --
作者:
F. Smithies;N. Muskhelishvili;J. R. M. Radok
通讯作者: F. Smithies;N. Muskhelishvili;J. R. M. Radok
DOI: 10.1115/1.2913045
发表时间: 2008-09
期刊: Journal of Applied Mechanics
影响因子: --
作者:
X. Wang;E. Pan;L. Sudak
通讯作者: X. Wang;E. Pan;L. Sudak
DOI: 10.1016/j.jmps.2013.12.007
发表时间: 2014-04
影响因子: 5.3
作者:
Z. Wang;J. Zhu;X.Y. Jin;W.Q. Chen;Ch. Zhang
通讯作者: Ch. Zhang
DOI: 10.1023/a:1007457618815
发表时间: 1997-11
影响因子: 2.5
作者:
H. Choi
通讯作者: H. Choi