GFRP杆抗压应变率效应试验研究  

EXPERIMENTAL RESEARCH ON THE EFFECT OF COMPRESSIVE STRAIN RATE OF GLASS FIBER REINFORCED PLASTIC RODS

作　　者：胡瑞[1] 汪剑辉[1] 颜海春[2] 林大路[1] 

机构地区：[1]总参工程兵科研三所,洛阳471023 [2]解放军理工大学人防工程设计研究院,南京210007

出　　处：《玻璃钢／复合材料》2015年第7期69-72,26,共5页Fiber Reinforced Plastics/Composites

摘　　要：为了研究玻璃纤维增强塑料（GFRP）杆的抗压性能,采用WAW600微机控制电液伺服万能试验机和Φ37分离式霍普金森压杆（SHPB）试验设备,对GFRP杆分别进行了准静态抗压性能和冲击性能试验。准静态条件下,该材料没有明显的屈服特征与塑性变形,表现出典型的脆性破坏特征;加载速度为100~500N/s时,应变率效应敏感。冲击载荷作用下,该材料的峰值应力、峰值应变及应力-应变曲线上升段斜率随应变率的提高而增大;抗压强度提高幅度较大,动力提高系数大于1.35,高达1.58。In order to study the compressive property of GFRP rod,quasi-static compressive test and impact performance test are carried out,by adopting WAW600 microcomputer controlled electro-hydraulic servo universal testing machine and Φ37 split Hopkinson pressure bar（ SHPB）. GFRP rods show typical brittle failure instead of yield characteristics and plastic deformation in quasi-static conditions. The effect of strain rate is sensitive at the low speed of 100 N / s to 500 N / s. The slopes of ascending stress-strain curves,the peak stresses and the peak strains increase with the strain rate under the impact loading. The compressive strength increases greatly,and the dynamic load coefficient is large than 1. 35,up to 1. 58.

关 键 词：复合材料 冲击性能试验 应力-应变曲线 应变率效应 峰值应力 峰值应变 动力提高系数 

分 类 号：TB332[一般工业技术—材料科学与工程]