| 闭孔泡沫铝的力学性能和吸能能力 |
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| 引用本文： | 王展光,蔡萍,应建中,李书琴,胡景智.闭孔泡沫铝的力学性能和吸能能力[J].材料导报,2012,26(10):152-155. |
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| 作者姓名： | 王展光 蔡萍 应建中 李书琴 胡景智 |
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| 作者单位： | 井冈山大学建筑工程学院,吉安,343009 |
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| 基金项目： | 井冈山大学博士启动项目(JZB11015);江西省科技支撑项目(2010BGA01700) |
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| 摘 要： | 在闭孔泡沫铝准静态压缩试验的基础上,研究了其力学性能、吸能能力。结果表明,闭孔泡沫铝单轴压缩应力-应变曲线呈现线弹性变形、塑性平台阶段、致密化阶段3个阶段;闭孔泡沫铝的压缩强度、吸能能力随着孔隙率的增大而减小,采用Gibson-Ashby模型分析闭孔泡沫铝的压缩屈服强度,吻合良好。并在此基础上,提出可供工程使用的多孔泡沫金属吸能能力公式,为其工程应用提供理论支持。
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| 关 键 词： | 闭孔泡沫铝 压缩力学性能 吸能能力 |
Mechanical Properties and Energy Absorption Capability of Closed-cell Al Foam |
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| WANG Zhanguang
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CAI Ping
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YING Jianzhong
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LI Shuqin
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HU Jingzhi.Mechanical Properties and Energy Absorption Capability of Closed-cell Al Foam[J].Materials Review,2012,26(10):152-155. |
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| Authors: | WANG Zhanguang CAI Ping YING Jianzhong LI Shuqin HU Jingzhi |
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| Affiliation: | (College of Building Engineering,Jinggangshan University,Ji’an 343009) |
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| Abstract: | Based on the compressive test of closed-cell Al foam,mechanical properties and energy absorption capacity under uniaxial compression were investigated.Compressive stress-strain curve of closed-cell Al foam consists of three distinct regions,the linear elasticity region,the plastic collapse region and the densification region.Compressive strength and energy absorption capacity of closed-cell Al foam decreases with the increase of porosity.Compressive yield stress is in good agreement with Gibson-Ashby model′s expectation.Formula on energy absorption capability of closed-cell Al alloy foam was presented,which could provide theoretical support for its engineering application. |
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| Keywords: | closed-cell Al foam compressive mechanical properties energy absorption capacity |
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