黄英杰,薛莹莹,汪聃.加载速率对点阵铝力学行为及吸能特性的影响[J].包装工程,2020,41(15):64-69.
HUANG Ying-jie,XUE Ying-ying,WANG Dan.Effects of Loading Rate on the Mechanical Behavior and Energy Absorption of Al Lattice Truss[J].Packaging Engineering,2020,41(15):64-69. |
| 加载速率对点阵铝力学行为及吸能特性的影响 |
| Effects of Loading Rate on the Mechanical Behavior and Energy Absorption of Al Lattice Truss |
| 投稿时间：2019-12-19 修订日期：2020-08-10 |
| DOI：10.19554/j.cnki.1001-3563.2020.15.010 |
| 中文关键词: 点阵铝 加载速率 屈服强度 吸能特性 |
| 英文关键词: Al lattice truss loading rate yield strength energy absorption |
| 基金项目:陕西省自然科学基金（2019JQ-833）；陕西省教育厅专项科研计划（19JQ0974）；延安大学博士科研启动项目（YDBD2018-21） |
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| 中文摘要: |
| 目的 研究基体材料和加载速率对点阵铝力学性能和吸能特性的影响规律。方法 针对工业纯铝、6063铝合金为基体的点阵铝在3种不同的加载速率下进行压缩力学试验。结果 加载速率从2 mm/min增加到250 mm/min时，点阵纯铝的屈服强度增加了2 MPa，点阵6063铝合金的屈服强度增加了7.6 MPa；加载速率从250 mm/min增加到500 mm/min时，点阵纯铝的屈服强度变化不大，而点阵6063铝合金的屈服强度增加了8.2 MPa；当加载速率一定时，点阵6063铝合金的屈服强度要大于点阵纯铝。结论 点阵6063铝合金的力学性能和单位体积吸能随着加载速率的增大而增大，并且点阵6063铝合金的力学性能和吸能特性要大于点阵纯铝。 |
| 英文摘要: |
| The work aims to study the effects of basis materials and loading rate on the mechanical behavior and energy absorption of Al lattice truss. The compressive mechanics of Al lattice truss with industrial pure aluminum and 6063 aluminum alloys as basis materials were tested at three different loading rates. When the loading rate increased from 2 mm/min to 250 mm/min, the yield strength of the pure Al lattice truss increased by 2 MPa, and the yield strength of the 6063 aluminum alloys based lattice truss increased by 7.6 MPa. When the loading rate increased from 250 mm/min to 500 mm/min, the yield strength of the pure Al lattice truss remained constant; however, the yield strength of the 6063 aluminum alloys based lattice truss increased by 8.2 MPa. At the same loading rate, the yield strength of 6063 aluminum alloys based lattice truss was higher than that of pure Al lattice truss. The mechanical properties and energy absorption per unit volume of 6063 aluminum alloys based lattice truss increase with the increase of loading rate, and the mechanical properties and energy absorption of 6063 aluminum alloys based lattice truss are much higher than those of pure Al lattice truss. |
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