DYNAMIC CRUSHING PERFORMANCE ANALYSIS FOR AUXETIC HONEYCOMB STRUCTURE

HOU XiuHui; YIN GuanSheng

doi:10.16579/j.issn.1001.9669.2016.05.001

您当前的位置：

首页 >

文章列表页 >

DYNAMIC CRUSHING PERFORMANCE ANALYSIS FOR AUXETIC HONEYCOMB STRUCTURE

更新时间：2022-09-22

- DYNAMIC CRUSHING PERFORMANCE ANALYSIS FOR AUXETIC HONEYCOMB STRUCTURE
- Journal of Mechanical Strength Vol. 38, Issue 5, Pages: 905-910(2016)
- 作者机构：
  
  1. 长安大学建筑工程学院
  2. 长安大学理学院
- 作者简介：
- 基金信息：
- DOI：10.16579/j.issn.1001.9669.2016.05.001
  CLC：
扫描看全文
HOU XiuHui, YIN GuanSheng. DYNAMIC CRUSHING PERFORMANCE ANALYSIS FOR AUXETIC HONEYCOMB STRUCTURE. [J]. 38(5):905-910(2016)
DOI：

HOU XiuHui, YIN GuanSheng. DYNAMIC CRUSHING PERFORMANCE ANALYSIS FOR AUXETIC HONEYCOMB STRUCTURE. [J]. 38(5):905-910(2016) DOI： 10.16579/j.issn.1001.9669.2016.05.001.

摘要

对一种新型蜂窝结构-负泊松比多凹角蜂窝及凹角蜂窝的面内抗冲击性能进行了系统分析。首先利用有限元软件Ansys/LS-DYNA分析了多凹角蜂窝及凹角蜂窝结构在不同速度冲击荷载作用下的变形模态,揭示了凹角蜂窝结构特有的负泊松比效应对提高其抗冲击强度的作用机制;随后根据经典理论模型,得出凹角蜂窝结构动力学强度的经验公式,与有限元结果的对比分析验证了所得理论经验公式的有效性,同时凹角蜂窝较传统正六边形蜂窝结构更高的动力学强度揭示了凹角蜂窝结构更优的吸能效果。

Abstract

The in-plane dynamic crushing behavior of a new honeycomb structure-the multi-re-entrant honeycomb and reentrant honeycomb topology possessing negative Poisson’s ratio was analyzed here. Firstly the finite element method of ANSYS /LS-DYNA was applied to examine the deformation modes of multi-re-entrant honeycomb and re-entrant honeycomb under different impact loads,where the physical mechanism for the auxetic effect on improving the dynamic crushing strength is revealed. Then the empirical formula of the dynamic crushing strength was deduced based on the classical theory model,where comparisons with the finite element results revealed the effectiveness of the proposed empirical formula. Higher dynamic crushing strength reveals that the re-entrant honeycomb possesses better energy absorption ability than conventional hexagon topology due to its antitraditional deformation mechanism.

关键词

多凹角蜂窝有限元模拟负泊松比动力学强度经验公式

Keywords

Multi-re-entrant honeycombFinite element simulationNegative Poisson’s ratioDynamic crushing strengthEmpirical formula

references

Views

916

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

FINITE ELEMENT SIMULATION AND STRUCTURE OPTIMIZATION OF THE AGITATING MECHANISM OF DOUBLE SHAFT VIBRATING MIXER

RELATIONSHIP BETWEEN INTERNAL PRESSURE AND CAVITY VOLUME CHANGE BASED ON LIQUID IMPACT LOADING TO BIMETALLIC THIN-WALLED TUBES

Related Author

No data

Related Institution

Key Laboratory of Road Construction ＆ Equipment of MOE,Chang’an University

School of Mechanical and Electrical Engineering,Guilin University of Electronic Technology

National Demonstration Center for Experimental Education of Mechanical and Electrical Engineering Training,Guilin University of Electronic Technology

⁰