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材料研究学报  2003, Vol. 17 Issue (2): 162-168    
  论文 本期目录 | 过刊浏览 |
高比强泡沫铝合金中空层合圆管的性能
席国胜;何德坪;李鲲鹏
东南大学
引用本文:

席国胜; 何德坪; 李鲲鹏 . 高比强泡沫铝合金中空层合圆管的性能[J]. 材料研究学报, 2003, 17(2): 162-168.

全文: PDF(1205 KB)  
摘要: 设计制备了高比强泡沫铝合金中空层合圆管,测出了圆管的压缩应力-应变(σ-ε)曲线并研究了其性能。圆管的性能与泡沫铝合金的压缩σ-ε曲线相似,但有较小的波动;圆管的弹性模量与面板的弹性模量成线性关系,线性系数为η+α(0.5η2+0.3η)(1-η);泡沫铝合金中空层合圆管的紧实应变(εD)可用泡沫铝合金的εD表示。由σ-ε曲线计算出圆管的能量吸收性能,发现其吸能能力(W)大约比铝合金面板和泡沫铝合金的吸收能量之和高于60 %,吸能效率(E)高60 %。泡沫铝合金中空层合圆管具有轻质(ρ<1)特性,但是其压缩比强度σ/ρ和压缩比刚度E/ρ是泡沫铝合金相应参数的3倍。
关键词 材料合成与加工工艺吸能性能压缩    
Key words
收稿日期: 1900-01-01     
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