| 新型高强度胞状铝合金的压缩及能量吸收性能 |
| |
| 引用本文： | 郑明军,何德坪.新型高强度胞状铝合金的压缩及能量吸收性能[J].材料研究学报,2002,16(5):473-478. |
| |
| 作者姓名： | 郑明军 何德坪 |
| |
| 作者单位： | 东南大学
(郑明军)，东南大学(何德坪) |
| |
| 基金项目： | 国家自然科学基金资助项目50231010,50081002 |
| |
| 摘 要： | 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σa比后者高40％以上，其σ-ε曲线呈锯齿状，平台斜度（dσdε)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ε为0.15-0.6时吸能效率达到峰值0.85。
|
| 关 键 词： | 能量吸收性能 胞状铝合金 孔径 孔隙率 吸能能力 吸能效率 压缩性能 |
| 文章编号： | 1005-3093(2002)05-0473-06 |
| 修稿时间： | 2001年9月17日 |
DEFORMATION AND ENERGY ABSORPTION CHARACTERISTIC OF HIGH STRENGTH CELLULAR Al ALLOY |
| |
| ZHENG Mingjun,HE Deping.DEFORMATION AND ENERGY ABSORPTION CHARACTERISTIC OF HIGH STRENGTH CELLULAR Al ALLOY[J].Chinese Journal of Materials Research,2002,16(5):473-478. |
| |
| Authors: | ZHENG Mingjun HE Deping |
| |
| Abstract: | The deformation behavior and energy absorption characteristics of cellular Al alloy (ZL111) with high strength have been investigated. The stress-strain curve of cellular Al alloy consists of three distinct regions, i.e., the linear elasticity region, the plastic collapse region or brittle crushing region, and the densification region. The cellular Al alloy has a higher collapse stress than that of the cellular Al. The rake of the plateau of the compressive curve of the cellular Al alloy is smaller than that of cellular Al. So the cellular Al alloy is more suitable for energy absorbing. The peak of the energy absorbing efficiency of the cellular Al alloy is 0.85 at the strain 0.15-0.6. |
| |
| Keywords: | cellular Al alloy pore diameter porosity energy absorption capacity energy absorption efficiency |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
