Parametrization Design of Arc-star-shaped Structures with Tunable Poisson's Ratio

doi:10.3969/j.issn.1004-132X.2021.18.010

China Mechanical Engineering ›› 2021, Vol. 32 ›› Issue (18): 2211-2216.DOI: 10.3969/j.issn.1004-132X.2021.18.010

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Parametrization Design of Arc-star-shaped Structures with Tunable Poisson's Ratio

LIU Haitao1,2 ;WANG Yanbin1,2; ZHANG Zhengyan1,2

1.School of Mechanical Engineering,Hebei University of Technology,Tianjin,300401
2.National Engineering Research Center for Technological Innovation Method and Tool,Hebei University of Technology,Tianjin,300401

Online:2021-09-25 Published:2021-10-13

可调泊松比圆弧星型结构的参数化设计

刘海涛1,2;王彦斌1,2;张争艳1,2

1.河北工业大学机械工程学院，天津，300401
2.河北工业大学国家技术创新方法与实施工具工程技术研究中心，天津，300401

通讯作者: 张争艳（通信作者），男，1984年生，副教授。研究方向为增材制造。发表论文30余篇。E-mail:zzy@hebut.edu.cn。
作者简介:刘海涛，男，1982年生，副教授、博士研究生导师。研究方向为超材料结构设计及应用。发表论文70余篇。E-mail:htliu@hebut.edu.cn。
基金资助:
国家自然科学基金 (61802108)

Abstract

Abstract: A novel arc-star-shaped structure with tunable Poissons ratio was proposed, which was composed of arc rods and traditional star structure. Stress concentration problems were solved, and the manufacturability of the structure was improved. Poissons ratios of the structure with different parameters were obtained by energy method. Finite-element simulations and experiments of 3D printing specimens verified the correctness of theorical calculations. Effects of geometric parameters on the Poissons ratios of the structure were discussed in detail. Different geometric parameters may be selected according to the required performance to meet the engineering needs.

Key words: mechanics metamaterial, negative Poissons ratio, arc-star-shaped structure, parametrization design

摘要： 在传统星型结构中加入圆弧杆，设计出一种可调泊松比圆弧星型结构，解决了结构受载时存在的应力集中问题，提高了结构的可制造性。运用能量方法推导出该结构在不同参数下的泊松比。通过有限元仿真及3D打印技术制备试件的实验验证了理论的正确性，讨论了各参数对结构泊松比的影响，可根据所需性能选取不同的几何参数来满足工程需要。

关键词: 力学超材料, 负泊松比, 圆弧星型结构, 参数化设计

CLC Number:

O347

LIU Haitao, , WANG Yanbin, ZHANG Zhengyan, . Parametrization Design of Arc-star-shaped Structures with Tunable Poisson's Ratio[J]. China Mechanical Engineering, 2021, 32(18): 2211-2216.

刘海涛, 王彦斌, 张争艳, . 可调泊松比圆弧星型结构的参数化设计[J]. 中国机械工程, 2021, 32(18): 2211-2216.

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Parametrization Design of Arc-star-shaped Structures with Tunable Poisson's Ratio

可调泊松比圆弧星型结构的参数化设计

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