硬质聚氨酯泡沫塑料填充薄壁钢管横向压缩吸能特性分析

Energy Absorption Characteristics of Rigid Polyurethane Foam Filling Thin walled Steel Tube under Lateral Compression

为研究硬质聚氨酯泡沫塑料填充薄壁钢管后的吸能特性,对单钢管、钢管嵌套系统及填充硬质聚氨酯泡沫塑料后的钢管进行横向静力压缩试验,并对试验结果进行对比分析。结果表明:硬质聚氨酯泡沫塑料填充管比空钢管的吸能效果有明显提高,其中双钢管嵌套系统填充硬质聚氨酯泡沫塑料后吸能效果提高最明显,三钢管嵌套系统吸收外来的能量值最大。薄壁钢管填充硬质聚氨酯泡沫塑料是一种性能优良的吸能装置,在防护工程中可作为隔爆抗侵彻材料。

In order to understand energy absorption characteristics of rigid polyurethane foam filling thin-wall steel tube, lateral compression experiment is carried out with the single steel tube, steel tube nesting systems and their rigid polyurethane foam filling form,and the experimental results are compared to analyze. Research results show that with the same steel tube form, energy absorption efficiency of steel tube will improve significantly filled with rigid polyurethane. The excellent energy absorption capacity of rigid polyurethane foam filling three steel tube nesting system is proved. The effect of energy absorption is improved most obviously after rigid polyurethane foam filling double steel tube nesting system. The largest energy has been absorbed by rigid polyurethane foam filling three steel tube nesting system. Rigid polyurethane foam filling thin-wallsteel tubeis energy absorber with outstanding resistance property, which can be used in protection engineering as explosion and penetration resistance material.