摘要
在金字塔形栅格材料压缩试验的基础上,研究了其单轴压缩应力-应变曲线、吸能能力和吸能效率。结果表明:金字塔形栅格材料单轴压缩应力-应变曲线呈现线弹性变形阶段、弹塑性阶段、软化阶段、致密化阶段四个阶段;与泡沫铝合金的压缩性能比较,其压缩强度更高,吸能能力更强。
Based on the compressive test of pyramidal lattice material,the stress-strain curves,energy absorption capacity and energy absorption efficiency under uniaxial compression condition were investigated.The compressive stress-strain curve of pyramidal lattice material consists of four distinct regions： linear elasticity region,plastic collapse region,softening region and densification region.Compared with Al alloy foam,the compressive strength of pyramidal lattice material is relatively higher,the energy absorption capacity is stronger.
出处
《热加工工艺》
CSCD
北大核心
2011年第10期27-29,共3页
Hot Working Technology
基金
江西省教育厅科技项目(GJJ10207)
国家重点基础研究发展计划(2006CB601201)
关键词
金字塔形栅格材料
压缩应力-应变曲线
吸能能力
pyramidal lattice material
compressive stress-strain curves
energy absorption capacity
