南京理工大学学报（自然科学版）2019，Vol.43Issue(5)：541-547,7.DOI:10.14177/j.cnki.32-1397n.2019.43.05.001
胞元缺失对蜂窝结构面内力学性能的影响
Influence of missing cell on in-plane dynamic behavior of honeycomb
摘要
Abstract
In order to figure out the influences of missing cells on the in-plane dynamic behavior of the auxetic honeycomb, a finite element model is built and validated. In-plane dynamic crushing analysis under various conditions of defective size and shape are conducted. The sensitive analysis is performed by discussing the deformation mode, normalized plastic energy dissipation and impact resistance capacity of the defective honeycombs. The results show that the honeycombs are sensitive to both the defective size and shape at the low compression speed(2 m/s). The influence of weakens as the crushing velocity increases. In addition,the impact resistance capacity of honeycomb is also influenced by defects. This research provides useful references for the honeycomb in the field of engineering design.关键词
胞元缺失/蜂窝结构/缺陷/面内力学性能/吸能性能/抗冲击性能Key words
missing cells/ honeycomb/ defects/ in-plane dynamic behavior/ energy absorption capacity/impact resistance capacity分类
机械制造引用本文复制引用
李振,王亚进,刘经兴,王良模..胞元缺失对蜂窝结构面内力学性能的影响[J].南京理工大学学报（自然科学版）,2019,43(5):541-547,7.基金项目
国家自然科学基金(51675281) （51675281）
江苏省研究生科研与实践创新计划项目(KYCX18_0387) （KYCX18_0387）
