材料科学
锤子
复合材料
抗冲击性
结构工程
填充
有限元法
变形(气象学)
下降(电信)
平方(代数)
工程类
冶金
几何学
数学
电信
作者
Alexander Remennikov,Sih Ying Kong,Brian Uy
出处
期刊:Journal of Performance of Constructed Facilities
[American Society of Civil Engineers]
日期:2011-10-01
卷期号:25 (5): 373-381
被引量:88
标识
DOI:10.1061/(asce)cf.1943-5509.0000175
摘要
This paper presents the results of experimental and numerical studies of the comparative behavior of square hollow section (SHS) tubes filled with rigid polyurethane foam (RPF) and concrete undergoing transverse impact loading. A series of instrumented drop hammer tests were performed on mild steel and stainless steel SHSs for both filled and unfilled constructions. The concrete-filled tubes had the highest impact resistance and energy absorption capacity, followed by the steel tubes filled with RPF, and then the hollow tubes. The results also show that RPFs can be used as an effective infill material in structural steel hollow columns when expedient enhancement of the energy absorption capacity is required, e.g., to increase blast and impact resistance of hollow structural elements. Nonlinear dynamic finite-element analyses were carried out to simulate drop hammer test conditions. The predicted impact forces, deformation histories, and failure modes were found to be in good agreement with the experimental results.
科研通智能强力驱动
Strongly Powered by AbleSci AI