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OALib Journal期刊
ISSN: 2333-9721
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高比强泡沫铝合金中空层合圆管的性能
Keywords: 材料合成与加工工艺,吸能性能,压缩
Abstract:
？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。
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