IMPACT DYNAMIC BEHAVIOR ANALYSIS OF MULTIPLE LAYERS RE-ENTRANT HONEYCOMB CYLINDRICAL SHELLS (MT)

MA NanFang; DENG QingTian; LI XinBo; SONG XueLi

doi:10.16579/j.issn.1001.9669.2023.02.023

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IMPACT DYNAMIC BEHAVIOR ANALYSIS OF MULTIPLE LAYERS RE-ENTRANT HONEYCOMB CYLINDRICAL SHELLS (MT)

更新时间：2023-06-09

- IMPACT DYNAMIC BEHAVIOR ANALYSIS OF MULTIPLE LAYERS RE-ENTRANT HONEYCOMB CYLINDRICAL SHELLS (MT)
- Journal of Mechanical Strength Issue 2, Pages: 423-429(2023)
- 作者机构：
  
  1. 长安大学理学院
- 作者简介：
- 基金信息：
- DOI：10.16579/j.issn.1001.9669.2023.02.023
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MA NanFang, DENG QingTian, LI XinBo, et al. IMPACT DYNAMIC BEHAVIOR ANALYSIS OF MULTIPLE LAYERS RE-ENTRANT HONEYCOMB CYLINDRICAL SHELLS (MT). [J]. Journal of Mechanical Strength (2):423-429(2023)
DOI：

MA NanFang, DENG QingTian, LI XinBo, et al. IMPACT DYNAMIC BEHAVIOR ANALYSIS OF MULTIPLE LAYERS RE-ENTRANT HONEYCOMB CYLINDRICAL SHELLS (MT). [J]. Journal of Mechanical Strength (2):423-429(2023) DOI： 10.16579/j.issn.1001.9669.2023.02.023.

摘要

构建了不同角度单层内凹蜂窝圆柱壳模型，提出了一种新型多层复合内凹蜂窝圆柱壳结构。利用有限元仿真方法研究了单层和多层内凹蜂窝圆柱壳在轴向冲击下的变形行为，分析对比了单层和多层内凹蜂窝圆柱壳在不同冲击速度下的平台应力和比吸能特性。结果表明，在相同密度和尺寸下，多层内凹蜂窝圆柱壳的冲击能量吸收能力相对于单层内凹蜂窝圆柱壳有显著提升；内凹蜂窝圆柱壳初始变形破坏位置随着冲击速度的改变而改变；多层内凹蜂窝圆柱壳没有表现出负泊松比性质。

Abstract

The single layer re-entrant honeycomb cylindrical shell with different angles is established in this paper. Based on the single layer re-entrant honeycomb cylindrical shell with different angles, a novel composite re-entrant honeycomb cylindrical shell is proposed. The deformation behavior of single and multi-layer re-entrant honeycomb cylindrical shells under axial impact was studied by numerical simulation. By comparing and analyzing the plateau stress and specific energy absorption of single and multi-layer re-entrant honeycomb cylindrical shells under different impact velocities. The following conclusions can be obtained: compared with the single-layer re-entrant honeycomb cylindrical shell, the energy absorption capacity of the multi-layer re-entrant honeycomb cylindrical shell is significantly improved under the same density and size. The deformation position of re-entrant honeycomb cylindrical shell is changed with different impact velocities.The multi-layer re-entrant honeycomb cylindrical shell doesn′t show negative Poisson’s ratio.

关键词

内凹蜂窝复合材料圆柱壳冲击速度能量吸收

Keywords

Re-entrant honeycombComposite materialCylindrical shellImpact velocitiesEnergy absorption

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State Key Laboratory for Strength and Vibration of Mechanical Structures, School of Aerospace Engineering,Xi′an Jiaotong University

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