晶格超材料的重标度和介剪变形

IF 3.4 3区工程技术 Q1 MECHANICS

International Journal of Solids and Structures Pub Date : 2025-04-02 DOI:10.1016/j.ijsolstr.2025.113349

M. Spagnuolo , V.A. Eremeyev , F. D’Annibale , F. Hild

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引用次数: 0

摘要

本文介绍了一种由平行纤维在不同水平上排列而成的具有复杂介观结构的晶格超材料的实验结果。实验证据表明，除了纤维自身的变形，如伸长和弯曲，以及相邻两层之间的相对旋转外，在某些条件下，纤维也可能相对滑动。考虑到这种变形机制，并将其作为开发新的连续介质模型的关键假设。还讨论了所考虑的超材料具有的显着的重标度特性。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Rescaling and mesoshear deformations of lattice metamaterials

Experimental results are presented for a lattice metamaterial with a complex mesostructure composed of parallel fibers aligned at different levels. The experimental evidence suggests that the fibers, in addition to their own deformations, such as elongation and bending, and to the relative rotation between two adjacent layers, may also slide relative to each other under certain conditions. This deformation mechanism is taken into account and used as a key hypothesis in the development of a new continuum model. A remarkable rescaling property possessed by the considered metamaterial is also discussed.

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来源期刊

International Journal of Solids and Structures 物理-力学

CiteScore

6.70

自引率

8.30%

发文量

405

审稿时长

70 days

期刊介绍： The International Journal of Solids and Structures has as its objective the publication and dissemination of original research in Mechanics of Solids and Structures as a field of Applied Science and Engineering. It fosters thus the exchange of ideas among workers in different parts of the world and also among workers who emphasize different aspects of the foundations and applications of the field. Standing as it does at the cross-roads of Materials Science, Life Sciences, Mathematics, Physics and Engineering Design, the Mechanics of Solids and Structures is experiencing considerable growth as a result of recent technological advances. The Journal, by providing an international medium of communication, is encouraging this growth and is encompassing all aspects of the field from the more classical problems of structural analysis to mechanics of solids continually interacting with other media and including fracture, flow, wave propagation, heat transfer, thermal effects in solids, optimum design methods, model analysis, structural topology and numerical techniques. Interest extends to both inorganic and organic solids and structures.