摘要
泡沫填充圆筒是一种新型碰撞吸能结构,具有较好的吸能特性,现已广泛应用于汽车安全设计、航天器回收等领域。本文提出了一种以聚氨酯泡沫(PU)作为芯材,外侧缠绕玻璃纤维布并通过树脂室温固化形成的新型玻璃纤维增强复合材料(GFRP)筒体结构。通过这种泡沫填充GFRP圆筒的轴心受压试验,研究了泡沫密度、外壁厚度以及筒体高度对泡沫填充GFRP圆筒的力学性能与吸能能力的影响。
Foam-filled circular tube has been widely used in safety design of automobile,spacecraft recovery and so on due to its advantage of high energy absorption. This paper proposed a novel PU foam-filled GFRP circular tube,which was manufactured by means of resin curing process. Based on the axial compression tests,the effects of foam density,tube thickness and tube height on the ultimate compressive strength,axial shortening and energy absorbing capacity were investigated.
出处
《玻璃钢／复合材料》
CAS
CSCD
北大核心
2014年第12期36-40,共5页
Fiber Reinforced Plastics/Composites
基金
国家自然科学基金重点项目(51238003)
江苏省科技厅基础研究计划(自然科学基金)-青年基金项目(BK20140946)
关键词
GFRP圆筒
聚氨酯泡沫
轴向压缩
力学性能
吸能特性
GFRP circular tubes
PU foam
axial compression
mechanical performance
energy absorption
