四川轻化工大学学报（自然科学版）2026，Vol.39Issue(3)：119-128,10.DOI:10.11863/j.suse.2026.03.12
冻融后碳纤维混凝土动态力学性能数值模拟
Numerical Simulation of Dynamic Mechanical Properties of Carbon Fiber-reinforced Concrete After Freeze-Thaw Cycles
摘要
Abstract
To study the impact dynamic mechanical properties of carbon fiber-reinforced concrete(CFRC)after freeze-thaw cycles,a three-dimensional mesoscale numerical model of carbon fiber-reinforced concrete is established,and numerical simulations of the split Hopkinson pressure bar(SHPB)test of carbon fiber-reinforced concrete after undergoing freeze-thaw cycles are performed.The stress-strain curves obtained from the numerical simulation with different numbers of freeze-thaw cycles(0,50,100,150)and different strain rates(55 s-1,110 s-1,165 s-1)match well with the test curves,which verifies the reliability of the three-dimensional mesoscale numerical model of carbon fiber-reinforced concrete.The numerical simulation results show that both the number of freeze-thaw cycles and the strain rate have effects on the damage mode of carbon fiber-reinforced concrete,and with the increase of strain rate,the number of cracks produced in the impact damage process of carbon fiber-reinforced concrete increases,and the damage of aggregate is more serious.With the increase of number of freeze-thaw cycles,the number of cracks produced in the carbon fiber-mortar matrix during the damage process of carbon fiber reinforced concrete increases significantly,and the damage of the aggregate does not change significantly.关键词
碳纤维增强混凝土/冻融循环/动态力学性能/三维细观模型Key words
carbon fiber-reinforced concrete/freeze-thaw cycles/dynamic mechanical properties/three-dimensional mesoscale modeling分类
建筑与水利引用本文复制引用
周泽阳,朱志武..冻融后碳纤维混凝土动态力学性能数值模拟[J].四川轻化工大学学报（自然科学版）,2026,39(3):119-128,10.基金项目
四川省自然科学基金项目(2025ZNSFSC0095) （2025ZNSFSC0095）
