梯度模式对Miura-ori超材料力学性能影响的研究

项新梅;罗林林;符祖书;何世珠

兵工学报 ›› 2024, Vol. 45 ›› Issue (2) : 618-627.

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  • 主管：中国科学技术协会

    主编：许毅达

    ISSN 1000-1093

    　

  • 主办：中国兵工学会

    出版：《兵工学报》 编辑部

    CN 11-2176/TJ

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兵工学报 ›› 2024, Vol. 45 ›› Issue (2) : 618-627. DOI: 10.12382/bgxb.2022.0883
论文

梯度模式对Miura-ori超材料力学性能影响的研究

  • 项新梅*()， 罗林林， 符祖书， 何世珠
作者信息 +

Effect of Gradient Mode on Mechanical Properties of Miura-ori Metamaterials

  • XIANG Xinmei*, LUO Linlin， FU Zushu, HE Shizhu
Author information +
文章历史 +

摘要

Miura-ori超材料是一种重量轻且多孔的材料，其机械性能通常是由自身的折叠方式和几何形状决定的，它的机械响应可以通过几何设计来进行修正调整，是一种具有多功能的、可调控且设计空间多样的超材料。为研究厚度渐变（Thickness Gradient，TG）模式以及锐角渐变模式对超材料能量吸收能力的影响，结合有限元分析软件参数化分析超材料的力学特性。研究结果表明， TG梯度为负梯度的超材料能量吸收能力较好，并且负梯度时的TG梯度超材料的平均力和能量吸收比锐角梯度超材料表现更佳。

Abstract

Miura-ori metamaterials are lightweight and porous structures whose mechanical properties are often determined by their folding modes and geometries. Their mechanical responses can be modified by geometric design. Therefore, Miura-ori metamaterial is a metamaterial with multifunctional, adjustable and spatially diverse design. In order to study the effects of thickness gradient (TG) mode and acute gradient mode on the energy absorption capacity of metamaterials, the mechanical properties of metamaterials were analyzed parametrically using the finite element software. The results show that the metamaterials with negative TG have better energy absorption capability, and the average force and energy absorption of metamaterials with negative TG are better than those with the acute gradient.

关键词

Miura-ori超材料 / 梯度模式 / 厚度渐变 / 有限元分析 / 力学性能

Key words

Miura-orimetamaterial / gradientmode / thicknessgradient / finiteelementanalysis / mechanicalproperty

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项新梅，罗林林，符祖书，何世珠. 梯度模式对Miura-ori超材料力学性能影响的研究. 兵工学报. 2024, 45(2): 618-627 https://doi.org/10.12382/bgxb.2022.0883
XIANG Xinmei, LUO Linlin， FU Zushu, HE Shizhu. Effect of Gradient Mode on Mechanical Properties of Miura-ori Metamaterials. Acta Armamentarii. 2024, 45(2): 618-627 https://doi.org/10.12382/bgxb.2022.0883

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