利用增材制造技术评价Mirror-Miura变型折纸结构的非线性准静态力学性能

IF 4.3 2区工程技术 Q1 ENGINEERING, CIVIL

Structures Pub Date : 2025-03-03 DOI:10.1016/j.istruc.2025.108504

Bei Liu , Yawen Yang , Jiaqi Zou , Xilong Gu , Haibin Yin

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引用次数: 0

摘要

本文通过对称概念设计了一种基于增材制造（3D打印）技术的镜面-三浦变型折纸结构，实现了模块化设计。采用拟合方法研究了不同Mirror-Miura变型折纸结构的非线性力学性能，并对其初始峰值力、平均压缩力、能量吸收值、比能吸收值进行了比较。结果表明，所设计的Mirror-Miura变型折纸结构的非线性力学性能可以用多项式和正弦拟合函数近似表示。利用MMO-V4结构，研究不同结构参数对非线性压缩和弯曲性能的影响。当壁厚从1 mm增加到2 mm时，MMO-V4结构的初始峰值力和z向SEA值分别增加556.77 %和220.09 %。对于不同的MMO管的弯曲性能，MMO- v2表现出更好的抗弯性能。此外，随着MMO数量的增加，MMO- v4管在x和y方向的最大弯曲力分别降低47.59 %和48.31 %。此外，根据压缩试验结果，三明治折纸（MMO-V4）结构也表现出更好的高承载和低重量能力。

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Nonlinear quasi-static mechanical properties evaluation of the Mirror-Miura variant origami structures through additive manufacturing technology

In this paper, a kind of Mirror-Miura variant origami structure is designed through the symmetry concept which could realize modular design based on the additive manufacturing (3D printing) technology. The nonlinear mechanical properties of different Mirror-Miura variant origami structures were investigated by fitting methods and compared by initial peak force, average compressive force, energy absorption value, specific energy absorption value. The results show that the nonlinear mechanical properties of the designed Mirror-Miura variant origami structures could be approximately expressed by polynomial and sine fitting functions. Utilizing the MMO-V4 structure, the effects of different structural parameters on the nonlinear compressive and bending properties. When wall thickness increases from 1 mm to 2 mm the initial peak force and the z-direction SEA value of MMO-V4 structures could increase by 556.77 % and 220.09 %, respectively. For the bending performance of different MMO tubes, the MMO-V2 shows the better bending resistance. Besides, with the increase of MMO numbers, the maximum bending forces of MMO-V4 tubes in the x and y directions could decrease by 47.59 % and 48.31 %, respectively. Besides, the sandwich origami (MMO-V4) structure also shows better high-bearing and lower-weight capacity according to compressive test results.

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来源期刊

Structures Engineering-Architecture

CiteScore

5.70

自引率

17.10%

发文量

1187

期刊介绍： Structures aims to publish internationally-leading research across the full breadth of structural engineering. Papers for Structures are particularly welcome in which high-quality research will benefit from wide readership of academics and practitioners such that not only high citation rates but also tangible industrial-related pathways to impact are achieved.