| 泡孔尺寸对开孔泡沫铝合金力学性能的影响 |
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| 引用本文： | 潘艺, 胡时胜, 凤仪, 朱震刚. 泡孔尺寸对开孔泡沫铝合金力学性能的影响[J]. 工程力学, 2003, 20(4): 171-175. |
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| 作者姓名： | 潘艺 胡时胜 凤仪 朱震刚 |
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| 作者单位： | 1.中国科学院中国科学技术大学材料力学行为和设计重点实验室, 合肥, 230027;2. 中国科学院合肥分院固体物理所固体与内耗实验室, 合肥, 230031 |
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| 基金项目： | 国家基金委，中物院联合基金资助项目(10076020) |
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| 摘 要： | 在分离式霍普金森压杆(SHPB)和MTS810材料试验机上对多组孔径、多组密度的开孔泡沫铝合金(AA6101)材料进行了准静态与动态压缩实验研究。泡孔尺寸不仅影响着材料的屈服强度和塑性模量等,还影响着材料的应变率敏感性。另外,不同孔径的泡沫铝合金有不同的理想吸能效率。
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| 关 键 词： | 泡孔尺寸 泡沫铝合金 吸能特性 泡孔失稳 |
| 文章编号： | 1000-4750(2003)04-0171-05 |
| 收稿时间： | 2002-03-24 |
| 修稿时间： | 2002-06-06 |
CELL-SIZE EFFECT ON MECHANICAL PROPERTY OF OPEN-CELL ALUMINUM ALLOY FOAM |
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| PAN Yi, HU Shi-sheng, FENG Yi, ZHU Zhen-gang. CELL-SIZE EFFECT ON MECHANICAL PROPERTY OF OPEN-CELL ALUMINUM ALLOY FOAM[J]. Engineering Mechanics, 2003, 20(4): 171-175. |
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| Authors: | PAN Yi HU Shi-sheng FENG Yi ZHU Zhen-gang |
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| Affiliation: | 1.Key Laboratory of Mechanical Behavior and Design of Materials, University of Science and Technology of China, CAS, Hefei 230027, China;2. Laboratory of Internal Friction and Defect in Solids, Institute of Solid State Physics, CAS, Hefei 230031, China |
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| Abstract: | The cell-size effect on compressive properties of aluminum alloy foam is analysed. A variety of experiments on AA6101 Aluminum Alloy foam, which includes 4 densities and 3 cell-sizes, are carried out under dynamic loading on SHPB and quasi-static loading on MTS 801, respectively. Cell-size has a significant effect not only on the crushing stress and plastic modulus of aluminum foam, but also on the strain-rate sensitivity of material of this kind. Energy absorption efficiency is also investigated in the paper. |
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| Keywords: | cell-size aluminum alloy foam energy-absorption cell buckling |
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