不同应变率加载条件下石墨烯混凝土的抗压性能

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大连海事大学学报 ›› 2026, Vol. 52 ›› Issue (1) : 134-142.

毕志远¹,徐佳翔², 阮世华^*3, 吴清鹏^4

作者信息 +

Compressive performance of graphene concrete under different strain rate loading conditions

BI Zhiyuan¹，XU Jiaxiang²，RUAN Shihua^*3, WU Qingpeng⁴#br#
#br#

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摘要

为提升混凝土在动荷载作用下的力学性能，探讨纳米材料对其的增强效应，以掺入0.05%石墨烯的混凝土为对象，开展动态单轴抗压性能研究。采用 5 种应变率水平（10^-5s^-1、10^-4s^-1、10^-3s^-1、5×10^-3s^-1、10^-2s^-1），分别对石墨烯混凝土和普通混凝土进行单轴抗压性能试验与有限元模拟，进而对比分析了两类混凝土的动态力学性能差异及其应变率效应。试验结果表明：两种混凝土的抗压强度与弹性模量均具有显著的应变率敏感性，且随应变率的提高而增大；石墨烯混凝土的性能提升幅度随应变率变化而存在差异；相比普通混凝土，石墨烯混凝土的抗压强度、弹性模量、峰值应变和吸能能力的最大提升幅度分别为16.17%、5.02%、7.27%和20.20%。有限元数值模拟结果与试验测试结果吻合良好，验证了模拟方法的有效性。该研究可为石墨烯纳米材料在混凝土工程中的应用提供理论支撑与技术参考。

Abstract

To enhance the mechanical performance of concrete under dynamic loading and investigate the reinforcing effect of nanomaterials, a study was conducted on the dynamic uniaxial compressive performance of concrete mixed with 0.05% graphene. Uniaxial compressive performance tests and finite element simulations were conducted on graphene concrete and ordinary concrete by using five different strain rate levels (10^-5s^-1, 10^-4s^-1, 10^-3s^-1, 5×10^-3s^-1, and 10^-2s^-1), and the differences in dynamic mechanical properties and strain rate effects between the two types of concrete were compared and analyzed. The experimental results show that the compressive strength and elastic modulus of both types of concrete have significant strain rate sensitivity, and increase with the increase of strain rate. The performance improvement of graphene concrete varies with strain rate. Compared to ordinary concrete, the maximum increase in compressive strength, elastic modulus, peak strain, and energy absorption capacity of graphene concrete is 16.17%, 5.02%, 7.27%, and 20.20%, respectively. The finite element numerical simulation results are in good agreement with the experimental test results, verifying the effectiveness of the simulation method. This study can provide theoretical support and technical reference for the application of graphene nanomaterials in concrete engineering.

导出引用

毕志远, 徐佳翔, 阮世华, 吴清鹏. 不同应变率加载条件下石墨烯混凝土的抗压性能[J]. 大连海事大学学报. 2026, 52(1): 134-142

BI Zhiyuan, XU Jiaxiang, RUAN Shihua, WU Qingpeng. Compressive performance of graphene concrete under different strain rate loading conditions[J]. Journal of Dalian Maritime University. 2026, 52(1): 134-142

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