Effective response of a non-linear composite in external AC electric field

IOCAS-IR > 海洋环流与波动重点实验室

	Effective response of a non-linear composite in external AC electric field
	Wei, EB ; Song, JB ; Gu, GQ
	2002-11-01
发表期刊	PHYSICA B-CONDENSED MATTER
ISSN	0921-4526
卷号	324 期号:1-4 页码:322-328
文章类型	Article
摘要	A general effective response is proposed for nonlinear composite media, which obey a current field relation of the form J = sigmaE + chi\E\(2) E when an external alternating current (AC) electrical field is applied. For a sinusoidal applied field with finite frequency omega, the effective constitutive relation between the current density and electric field can be defined as, = sigma(e) + chi(e) <\E(x, omega, t)\(2) E(x, omega, t)> + (. . .), where sigma(e) and chi(e) are the general effective linear and nonlinear conductive responses, respectively. The angled brackets <(. . .)> denotes the ensemble average. As two examples, we have investigated the cylindrical and spherical inclusions embedded in a host and also derived the formulae of the general effective linear and nonlinear conductive responses in dilute limit. For higher volume fraction of inclusions, we have proposed a nonlinear effective medium approximation (EMA) method to estimate the general effective response of nonlinear composites in external AC field. Furthermore, the effective nonlinear responses at harmonics are predicted by using the general effective response. (C) 2002 Elsevier Science B.V. All rights reserved.; A general effective response is proposed for nonlinear composite media, which obey a current field relation of the form J = sigmaE + chi\E\(2) E when an external alternating current (AC) electrical field is applied. For a sinusoidal applied field with finite frequency omega, the effective constitutive relation between the current density and electric field can be defined as, = sigma(e) + chi(e) <\E(x, omega, t)\(2) E(x, omega, t)> + (. . .), where sigma(e) and chi(e) are the general effective linear and nonlinear conductive responses, respectively. The angled brackets <(. . .)> denotes the ensemble average. As two examples, we have investigated the cylindrical and spherical inclusions embedded in a host and also derived the formulae of the general effective linear and nonlinear conductive responses in dilute limit. For higher volume fraction of inclusions, we have proposed a nonlinear effective medium approximation (EMA) method to estimate the general effective response of nonlinear composites in external AC field. Furthermore, the effective nonlinear responses at harmonics are predicted by using the general effective response. (C) 2002 Elsevier Science B.V. All rights reserved.
关键词	Nonlinear Composites Effective Medium Approximation Effective Response
学科领域	Physics, Condensed Matter
收录类别	SCI
语种	英语
WOS记录号	WOS:000180104100041
引用统计	被引频次：14[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.qdio.ac.cn/handle/337002/2536
专题	海洋环流与波动重点实验室
作者单位	1.Chinese Acad Sci, Inst Oceanol, Qingdao 266071, Peoples R China 2.Shanghai Univ Sci & Technol, Coll Comp Engn, Shanghai 200093, Peoples R China
推荐引用方式 GB/T 7714	Wei, EB,Song, JB,Gu, GQ. Effective response of a non-linear composite in external AC electric field[J]. PHYSICA B-CONDENSED MATTER,2002,324(1-4):322-328.
APA	Wei, EB,Song, JB,&Gu, GQ.(2002).Effective response of a non-linear composite in external AC electric field.PHYSICA B-CONDENSED MATTER,324(1-4),322-328.
MLA	Wei, EB,et al."Effective response of a non-linear composite in external AC electric field".PHYSICA B-CONDENSED MATTER 324.1-4(2002):322-328.

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