摘要
为了研究泡沫铝填充钢管轴向压缩性能,本文以泡沫铝填充钢管为研究对象,通过试验研究泡沫铝填充钢管构件在轴向准静态载荷条件下的承载能力和变化情况;同时通过有限元数值模拟对泡沫铝填充钢管的承载能力、变形模式、应力分布和能量吸收特性进行研究。研究表明:相比于纯钢管,泡沫铝填充钢管在轴力超过极限荷载之后,仍有较大的剩余承载力,整个压缩过程表现为稳态压缩;填充钢管轴向和侧向变形的幅度较小,填充钢管的变形无空腔的存在、大应力区也有所减小,轴压下的变形规律性更好,耗能能力更优。
To study the axial compression performance of aluminum foam-filled steel tubes,this paper takes aluminum foam-filled steel tube as the research object,and explores the carrying capacity and deformation behavior of aluminum foam-filled steel tubes under quasi-static axial load through experimental research.Meanwhile,the bearing capacity,deformation mode,stress distribution,and energy absorption of aluminum foam-filled steel tubes are studied through finite element numerical simulation.The results indicate that compared with the empty steel tube,the aluminum foam-filled steel tube still present a large residual carrying capacity after the axial force exceeds the ultimate load,and the whole compression process reflect steady-state compression.The axial and lateral deformation amplitude of the foam-filled steel tube decreases significantly during the whole compression process.There exists no cavity in the deformation of the foam-filled steel tube,the large stress area also decreases,the regular deformation is better under the axial compression and the energy absorption capacity is improved as well.
作者
汪洋
蔡萍
邵建华
张继业
黄婧
王展光
Wang Yang;Cai Ping;Shao Jianhua;Zhang Jiye;Huang Jing;Wang Zhanguang(School of Civil Engineering,Kaili University,Kaili 556011,China;School of Civil Engineering and Architecture,Jiangsu University of Science and Technology,Zhenjiang 212000,China)
出处
《轻金属》
北大核心
2023年第4期47-54,共8页
Light Metals
基金
贵州省教育厅青年科技人才成长项目(黔教合KY字[2016]310)
黔东南州科技计划项目(黔东南科合J字[2021]34号)
黔东南州科技项目(黔东南科合J字[2022]61号)
国家自然科学基金(11462007)。
关键词
泡沫铝填充钢管
数值模拟
轴压试验
承载能力
耗能能力
aluminum foam-filled steel tube
numerical simulation
axial compression test
carrying capacity
energy absorption
