Effects of Defects on the In-plane Dynamic Energy Absorption of Metal Honeycombs

摘要：

The in-plane dynamic energy absorption of metal honeycombs with defects consisting of missing cells are analyzed using explicit dynamic finite element method. Two types of structural defects (a single defect located in the center of the model and a double defect) are firstly introduced. Then the influence of the defects and the impact velocities on the energy absorption abilities of metal honeycombs is investigated. Researches show that single and isolated defects reduce the absorbed energy of cellular materials. The separation distance between two defects has little effect on the dynamic energy absorption, while the size of the single defect has great influence on it. These results will provide some useful guides for the safety evaluation and the dynamic energy absorption design of metal honeycombs.

关键词： Energy Absorption Metal Honeycomb Defects Impact In-plane

作者: Fan Weili Zhang Xinchun

作者单位: College of Physics Science and Technology Hebei University Baoding 071002, China School of Energy and Power Engineering North China Electric Power University Baoding 071003, China

会议类型: 国际会议

会议名称: 2010 International Conference on Digital Manufacturing and Automation(2010 数字制造与自动化国际会议 ICDMA 2010)

会议地点: 长沙

会议语种:英文

页码: 618-621

在线出版日期: 2010-12-18（万方平台首次上网日期，不代表论文的发表时间）