非线性带涂层球形复合介质有效的交流电响应

Effective AC Response of Nonlinear Spherical Coated Composites

利用摄动方法研究了在外加交流电场E=E1sinωt+E3sin 3ωt+E5sin 5ωt的作用下非线性带涂层球形复合介质的交流电响应。结果表明,这种介质满足的电流密度J和电场强度E之间满足的关系为:Jα=σαE+χα|E|2E。

In this paper, the effective response in the coated nonlinear spherical composite is investigated under the action of an external AC electric field E=E1 sin wt＋E3 sin 3wt＋E5 sin 5wt by using the perturbation method. The constitutive relations between current density J and electric field E in the inclusion and host regions have the following forms： Ja=σaE＋xa｜E｜2E.