使用智能皮肤对钢筋混凝土结构进行裂纹检测
Yu-Jin Jung1, Sung-Hwan Jang1,2
1Department of Smart City Engineering, Hanyang University ERICA, Ansan 15588, Republic of Korea.
Nanomaterials (Basel, Switzerland)
|April 12, 2024
概括
这项研究介绍了一种基于碳纳米管 (CNT) 的新型智能皮肤,用于在钢筋混凝土结构中自传感检测裂. 开发的传感器有效监测裂的形成和生长,证明了结构健康监测的高可靠性.
科学领域:
- 材料科学 材料科学 材料科学
- 土木工程 土木工程是指土木工程.
- 纳米技术 纳米技术
背景情况:
- 结构健康监测 (SHM) 对钢筋混凝土 (RC) 结构至关重要.
- 开发自传感裂纹传感器可以增强SHM的能力.
- 基于碳纳米管 (CNT) 的聚合物复合材料为此类传感器提供了潜力.
研究的目的:
- 研究用于裂纹检测的基于CNT的聚合物复合材料的电气和电机性能.
- 为了确定智能皮肤传感器的最佳CNT度.
- 为了验证传感器在RC结构上的性能.
主要方法:
- 使用集成到聚合物基质 (聚氨) 中的CNT制造智能皮肤.
- 在各种CNT度下,电导率,拉伸应变灵敏度和环境影响的表征.
- 在RC结构上应用和测试智能皮肤,以监测裂的形成和生长.
主要成果:
- 发现,用于裂纹检测的最佳CNT度为5重量%.
- 智能皮肤成功检测并监测了RC结构中的裂形成和传播.
- 传感器在重复的裂宽度变化过程中表现出卓越的可重复性和电稳定性.
结论:
- 基于CNT的智能皮肤显示出作为RC结构的SHM可靠裂纹检测传感器的巨大潜力.
- 开发的传感器为实时结构监控提供了一个有希望的方法.
- 进一步的研究可以探索长期耐用性和不同的环境条件.
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