CAJ | 학술논문

为探究芳纶纤维增强复合材料(AFRP)约束混凝土的动态冲击力学性能,采用?100mm SHPB 试验系统对 C30\C40\C50三种基体强度等级的 AFRP 约束混凝土进行了动态冲击试验,得到了动态试验下的应力-应变曲线。试验结果表明,高应变率冲击下,AFRP 约束条件显著延长了混凝土试件的弹塑性阶段,其延性\强度都有明显提高,并表现出应力率强化效应；约束层数的增加和基体混凝土强度的增大也有助于提高 AFRP 约束混凝土的抗冲击性能。
위탐구방륜섬유증강복합재료(AFRP)약속혼응토적동태충격역학성능,채용?100mm SHPB 시험계통대 C30\C40\C50삼충기체강도등급적 AFRP 약속혼응토진행료동태충격시험,득도료동태시험하적응력-응변곡선。시험결과표명,고응변솔충격하,AFRP 약속조건현저연장료혼응토시건적탄소성계단,기연성\강도도유명현제고,병표현출응력솔강화효응；약속층수적증가화기체혼응토강도적증대야유조우제고 AFRP 약속혼응토적항충격성능。
In order to explore the dynamic impact mechanical properties of Aramid Fiber Reinforced Polymer (AFRP) confined concrete, the dynamic impact tests of AFRP confined concrete (C30, C40, C50) was carried out by using the ?100mm SHPB test system, and the dynamic stress-strain curves were obtained. The test results show that under the im-pact of high strain rates, AFRP constraints can significantly extend the elastic-plastic stage of concrete specimens, and the ductility and strength of the concrete improves significantly, meanwhile, it shows the stress hardening effect; In addition, the increase of fiber cloth layers and the strength of core concrete also contribute to improving the impact resistance of AFRP confined concrete.