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| 作者 | Wei, EB; Song, JB; Gu, GQ
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| 刊名 | PHYSICA B-CONDENSED MATTER
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| 出版日期 | 2002-11-01
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| 卷号 | 324期号:1-4页码:322-328 |
| 关键词 | Nonlinear Composites
Effective Medium Approximation
Effective Response
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| ISSN号 | 0921-4526
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| 文献子类 | Article
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| 英文摘要 | 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. |
| 学科主题 | Physics, Condensed Matter
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| 语种 | 英语
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| WOS记录号 | WOS:000180104100041
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| 公开日期 | 2010-12-22
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| 源URL | [http://ir.qdio.ac.cn/handle/337002/2537]  |
| 专题 | 海洋研究所_海洋环流与波动重点实验室
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| 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
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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.
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| 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.
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| 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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