论文标题
迈向复杂工程元结构的概念：低频机械二极管/高频屏幕的放松微型建模
Towards the conception of complex engineering meta-structures: relaxed-micromorphic modelling of low-frequency mechanical diodes/high-frequency screens
论文作者
论文摘要
在本文中，我们表明，鉴于它们用于元结构设计的使用，可以使用富集的微态类型的连续模型（放松的微态模型）对超材料的响应进行建模。我们专注于这样一个事实，即减少模型的结构，再加上范围良好的界面条件的引入，使我们能够轻松地测试超材料和经典材料砖的不同组合，因此我们可以最终以元结构的概念来实现低/中等频率的机械二极管的元结构，以获取较低/中等频率的频率和总频率。由于模型的结构减少，我们还能够优化该元结构，以便对“压力”和“剪切”入射波以及所有可能的入射角都增强了二极管行为。
In this paper we show that an enriched continuum model of the micromorphic type (Relaxed Micromorphic Model) can be used to model metamaterials' response in view of their use for meta-structural design. We focus on the fact that the reduced model's structure, coupled with the introduction of well-posed interface conditions, allows us to easily test different combinations of metamaterials' and classical-materials bricks, so that we can eventually end-up with the conception of a meta-structure acting as a mechanical diode for low/medium frequencies and as a total screen for higher frequencies. Thanks to the reduced model's structure, we are also able to optimize this meta-structure so that the diode-behaviour is enhanced for both "pressure" and "shear" incident waves and for all possible angles of incidence.
