Abstract

With the increasing requirement of metamaterials, integration and intellectualization have become the trends in order to enhance the manipulation efficiency of physical fields. Therefore, multiphysical functions and metamaterials have been proposed intensively. Meanwhile, the higher requirement of materials and structures is also put forward. In this work, by applying a shell and a dipole as two controllable conditions, multiphysical (say, thermal and electrical) invisibility can be obtained simultaneously with only common materials and simple structures. We explore the dipole effects in a core-shell structure and derive the requirements of the shell and dipole in both two and three dimensions, even considering the shells with material anisotropy. Finite-element simulations are consistent with theoretical analyses, confirming the feasibility of our scheme. These results may not only provide guidance to thermal and electrical management, but also benefit other physical fields such as electrostatics and magnetostatics.

Graphical abstract

中文翻译：

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定制偶极效应以同时实现热和电隐身

摘要

随着对超材料的要求不断提高，集成化和智能化已成为趋势，以提高物理场的操纵效率。因此，已经提出了多物理功能和超材料。同时，对材料和结构也提出了更高的要求。在这项工作中，通过应用壳和偶极子作为两个可控制的条件，仅使用常见的材料和简单的结构即可同时获得多物理（例如热和电）不可见性。我们研究了核-壳结构中的偶极效应，并在二维和三维上得出了壳和偶极子的要求，甚至考虑了具有材料各向异性的壳。有限元模拟与理论分析一致，确认我们方案的可行性。这些结果不仅可以为热和电管理提供指导，而且可以使其他物理领域受益，例如静电和静磁。

图形概要