在钢筋混凝土中实验性裂宽度量化,使用超声波和波干涉度
Noah Sträter1, Felix Clauß1, Mark Alexander Ahrens1
1Institute of Concrete Structures, Ruhr University Bochum, Universitätsstraße 150, 44801 Bochum, Germany.
Materials (Basel, Switzerland)
|August 14, 2025
概括
研究人员使用超声波来研究钢筋混凝土在张力下. 他们发现超声波信号变化与裂宽度之间存在直接联系,改善了基础设施健康监测.
科学领域:
- 土木工程 土木工程是指土木工程.
- 材料科学 材料科学 材料科学
- 非破坏性测试 不破坏性测试
背景情况:
- 钢筋混凝土是一种关键的基础设施材料.
- 了解裂形成对于结构完整性至关重要.
- 需要非破坏性方法来评估条件.
研究的目的:
- 用超声波研究钢筋混凝土的拉伸行为和裂纹形成.
- 为了建立超声波信号和机械参数之间的关系.
- 推进用于基础设施评估的可达波干扰度的使用.
主要方法:
- 在嵌入超声波传感器的钢筋混凝土部件上进行单轴拉伸试验.
- 通过超声波信号记录和coda波干涉计量,不断量化机械参数.
- 用数字图像相关性和光纤传感器强化应变分析裂纹图案.
主要成果:
- 建立了相对超声速变化和裂形成和稳定过程中的裂宽度之间的直接比例关系.
- 在非裂纹状态下,确定了速度变化,平均应变和样本长度之间的线性相关性.
- 显著增强了对破裂钢筋混凝土中的超声波信号行为的理解.
结论:
- 超声波测试,特别是波干涉测试,可以有效地监测钢筋混凝土的裂形成和宽度.
- 这种方法为现有基础设施的非破坏性评估提供了一个有希望的方法.
- 这些发现支持超声波技术在结构健康监测中的更广泛应用.
关键词:
可达波干涉测量 (coda wave interferometry) 是一种波干涉测量方法.裂宽度 裂宽度 裂宽度数字图像相关性相关性数字图像相关性光纤传感器光纤传感器非破坏性测试是指非破坏性测试.钢筋混凝土是强化混凝土的一种.压力 压力 压力 压力超声波超声波是指超声波的使用.更多相关视频
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