应用数学和力学2024，Vol.45Issue(1)：12-24,13.DOI:10.21656/1000-0887.440186
多壁管增强泡沫铝结构动态响应及吸能性能研究
Dynamic Response and Energy Absorption Performances of Multi-Walled Tube Reinforced Aluminum Foam Structure
摘要
Abstract
In order to improve the energy absorption performance of the aluminum foam,a multi-wall tube re-inforced aluminum foam was proposed.The dynamic crushing characteristics of the aluminum foam,the multi-wall tube,and the multi-wall tube reinforced aluminum foam were studied by Hopkinson pressure rod tests&fi-nite element analysis with software ABAQUS/Explicit.The deformation mode and energy absorption of the alu-minum foam was compared with those of the multi-wall tube reinforced aluminum foam,with the strain rate effect on the coupling enhancement discussed.The results show that,the finite element analysis can simulate the test results well.The strain rate effect on the aluminum foam is not obvious,while that on the multi-walled tube and the multi-wall tube reinforced aluminum foam is considerably obvious,and the energy absorption im-proves with higher strain rates.Under the dynamic impact condition,the peak strength of the multi-walled tube reinforced aluminum foam has obvious coupling enhancement compared with that of the multi-walled tube or the aluminum foam,and the corresponding energy absorption of the former increases by 10.34%over the sum of those of the latter ones.The study on dynamic crushing characteristics of the multi-walled tube reinforced a-luminum foam provides a reference for the application of energy-absorbing load-carrying components.关键词
多壁管/泡沫铝/动态特性/应变率/耦合增强Key words
multiwalled tube/aluminum foam/dynamic characteristic/strain rate/coupling enhancement引用本文复制引用
周睿,张志家,张旺,张钱城,魏欣,随亚光,王建强,金峰..多壁管增强泡沫铝结构动态响应及吸能性能研究[J].应用数学和力学,2024,45(1):12-24,13.基金项目
国家自然科学基金(面上项目)(12072250) （面上项目）
