金字塔形栅格材料与胞状铝合金的准静态压缩性能

摘要

在金字塔形栅格材料、胞状铝合金压缩试验的基础上研究其力学性能、吸能能力和吸能效率,结果表明,金字塔形栅格材料的单轴压缩应力-应变曲线呈现线弹性变形、弹塑性、软化、致密化等4个阶段,与胞状铝合金的压缩性能相比,其压缩强度更高,吸能能力更好.%Based on the compressive test of pyramidal lattice material and cellular A1 alloy, energy absorption capacity and energy absorption efficiency under uniaxial compression are investigated. Compressive stress-strain curve of pyramidal lattice material consists of four distinct regions: the linear elasticity region, the plastic collapse region,softening region, the densification region. Compared with Al alloy foam, compressive strength of pyramidal lattice material is relatively higher, energy absorption capacity is better.