付春英,罗显洲,孙德强.圆形蜂窝共面冲击力学性能[J].包装工程,2016,37(19):27-32.
FU Chun-ying,LUO Xian-zhou,SUN De-qiang.In-plane Dynamic Mechanics of Circular Honeycomb Cores[J].Packaging Engineering,2016,37(19):27-32. |
| 圆形蜂窝共面冲击力学性能 |
| In-plane Dynamic Mechanics of Circular Honeycomb Cores |
| 投稿时间：2016-08-25 修订日期：2016-10-10 |
| DOI： |
| 中文关键词: 圆形蜂窝芯材 共面 变形模式 动态峰应力 能量吸收 有限元分析 |
| 英文关键词: circular honeycomb cores in-plane deformation mode dynamic plateau stress energy absorption finite element analysis |
| 基金项目:国家自然科学基金（51575327）；陕西省教育厅重点实验室及基地项目（16JS014）；陕西省教育厅2014陕西本科高校专业综合改革试点子项目（陕教高[2014]16号） |
|
| 摘要点击次数: |
| 全文下载次数: |
| 中文摘要: |
| 目的 基于有限元模拟的方法，比较研究规则和交错排列的圆形蜂窝共面动态冲击力学性能。方法 利用Ansys/LS-DYNA建立2种蜂窝的共面冲击分析有限元模型。结果 借助于该模拟方法，分析得到在结构参数一致，冲击速度不同的情况下，规则排列的圆形蜂窝变形模式呈现3个阶段，即"X"，"V"和“一”字形，交错圆形蜂窝变形模式几乎相同，呈“一”字形。得出了2种排列方式的圆形蜂窝的变形模式转换速度与壁厚半径比的关系。根据有限元模拟结果，推导出了动态峰应力关于结构参数和冲击速度的经验公式。结论 用有限元模拟的方法得到了2种排列方式的圆形蜂窝的共面冲击力学性能，为圆形蜂窝芯材的优化设计提供了参考依据。 |
| 英文摘要: |
| The work aims to comparatively investigate the in-plane dynamic mechanics of regularly-arranged and alternately-arranged circular honeycomb cores based on finite element simulations. The FE models of two kinds of circular honeycomb cores were established by using Ansys/LS-DYNA under the in-plane impact loadings. By means of such simulation method, according to the analysis, the regularly-arranged circular honeycomb deformation modes, with the consistent structural parameters and different impact speeds, took on three stages, namely "X", "Y" and "I" shapes. The alternately-arranged circular honeycomb deformation modes were almost the same and took on "I" shape. The relationship between the conversion speed and the wall thickness radius ratio of the circular honeycomb deformation modes arranged in two ways was concluded. According to the FE simulation results, the empirical formulas of dynamic plateau stresses were derived in terms of configuration parameters and impact velocity. In conclusion, the in-plane dynamic mechanics of circular honeycomb cores arranged in two ways by means of FE simulation provide reference for the optimized design of circular honeycomb cores. |
|
查看全文
查看/发表评论 下载PDF阅读器 |
| 关闭 |
渝公网安备 50010702501716号