新颖的模块化折纸策略:实现可调节的泊松比和可调整的独特机械特性,满足多种应用需求

IF 4.4 2区 工程技术 Q1 COMPUTER SCIENCE, INTERDISCIPLINARY APPLICATIONS Computers & Structures Pub Date : 2024-11-02 DOI:10.1016/j.compstruc.2024.107566
Yongtao Bai , Chen Chen , Yao Chen , Ruining Zhu
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引用次数: 0

摘要

复杂的环境要求我们设计出具有非凡性能的结构。为此,我们采用新颖的设计策略,将三浦折纸和穿孔板相结合,设计出一种可折叠的模块化折纸结构。我们证实,这种结构在不同方向上表现出可调泊松比,从负值到正值,甚至可以接近无穷大。与周期性结构相比,单一模块化折纸结构的性能较差,因此我们将重点转向了更全面的分析。因此,我们进行了有限元分析,以仔细研究周期性排列的模块化折纸结构的机械行为。值得注意的是,在不同的折叠状态下,同一结构既可以表现出类似的机械性能,也可以表现出完全不同的机械性能。泊松比和机械性能的内在可变性为未来复杂环境中的应用提供了新的可能性,例如薄壁结构的展开、结构承重、能量吸收等。
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A novel modular origami strategy: Achieving adjustable Poisson’s ratio and tunable distinctive mechanical properties for versatile applications
The exigencies of intricate environments necessitate the conception of structures exhibiting extraordinary performance. In response, we devised a foldable modular origami structure by combining Miura-Origami and perforated plates, employing a novel design strategy. We substantiated that this structure manifests adjustable Poisson’s ratios in diverse directions, spanning from negative values to positive, and can even approach infinity. While singular modular origami structures demonstrate inferior performance compared to periodic configurations, our focus has shifted to a more comprehensive analysis. Therefore, we conducted finite element analyses to scrutinize the mechanical behavior of periodically arranged modular origami structures. Remarkably, the same structure can exhibit either analogous or entirely disparate mechanical properties in distinct folding states. The inherent variability in Poisson’s ratio and mechanical performance opens new possibilities for applications in prospective complex environments, such as unfolding thin-walled structures, structural load-bearing, energy absorption, and so forth.
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来源期刊
Computers & Structures
Computers & Structures 工程技术-工程:土木
CiteScore
8.80
自引率
6.40%
发文量
122
审稿时长
33 days
期刊介绍: Computers & Structures publishes advances in the development and use of computational methods for the solution of problems in engineering and the sciences. The range of appropriate contributions is wide, and includes papers on establishing appropriate mathematical models and their numerical solution in all areas of mechanics. The journal also includes articles that present a substantial review of a field in the topics of the journal.
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