| 颗粒复合介质的非线性响应 |
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| 引用本文： | 曹金元,高雷.颗粒复合介质的非线性响应[J].苏州大学学报(医学版),1996,12(4):50-54. |
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| 作者姓名： | 曹金元 高雷 |
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| 作者单位： | 苏州大学物理科学与技术学院
(曹金元)，苏州大学物理科学与技术学院(高雷) |
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| 摘 要： | 本文应用变分的方法1]研讨了一组强非线性导电颗粒复合介质的有效非线性响应。我们假定各组元的电流密度(J)——电场(E)关系为J=x|E|~4E,即五次非线性响应。数值给出了在稀释极限下有效电导随浓度及各组元电导的关系。同时研究了非线性次数对系统的有效电导产生的影响。
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| 关 键 词： | 强非线性 有效电导 颗粒复合介质 |
Strongly Nonlinear Response of Granular Composite |
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| Cao Jingyuan,Gao Lei.Strongly Nonlinear Response of Granular Composite[J].Journal of Suzhou University(Natural Science),1996,12(4):50-54. |
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| Authors: | Cao Jingyuan Gao Lei |
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| Institution: | School of physical Science and Technology |
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| Abstract: | In this paper, we use a variational approach1] to study the bulk effective response of a class of inhomengenous media with strongly nonlinear conductivity. We assume that every constituent of the composite obeys a current - field relation of the form J=X|E|4 E. In dilute limits, we have presented some numerical results for the effective conductivity with the change of microscopic conductivities and the concentration. Meanwhile, we discuss the influence resulting from the nonlinear exponent. |
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| Keywords: | Strong nonlinearity Effective conductivity Granular composite |
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