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OALib Journal期刊
ISSN: 2333-9721
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新型高强度胞状铝合金的压缩及能量吸收性能
Keywords: 胞状铝合金,孔径,孔隙率,吸能能力,吸能效率
Abstract:
？测量了新型轻质（0.14～0.09ρ0，ρ0为纯铝的密度）高强度胞状铝合金（zl111）的压缩应力（σ）－应变（ε）曲线，研究了材料的能量吸收性能与密度的关系。胞状铝合金的压缩σ－ε曲线与胞状纯铝相似分为三个部分：弹性阶段、平台阶段和压实阶段。胞状铝合金的压缩屈服强度比后者高40％以上，其σ－ε曲线呈锯齿状，平台斜度比后者小，因而具有更高的能量吸收能力（c）和能量吸收效率（e），当为0.15～0.6时吸能效率达到峰值。
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