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Monitoring the Wall Mechanics During Stent Deployment in a Vessel
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在无极管壁中测量平面应力,使用改进的三向LCR超声波方法
Yukun Li1, Longsheng Wang1, Fan Fei2
1College of Pipeline and Civil Engineering Institute, China University of Petroleum (East China), Qingdao 266580, China.
Sensors (Basel, Switzerland)
|July 30, 2025
概括
这项研究引入了一种新的超声波方法来测量管道壁的应力. 该技术使用超声波飞行时间来准确评估结构安全和管道健康监测的管道应力.
科学领域:
- 材料科学与工程 材料科学与工程
- 非破坏性测试 不破坏性测试
- 机械工程 机械工程
背景情况:
- 精确地描述管道壁的平面应力对于评估承载能力和确保结构安全至关重要.
- 现有的方法可能不适合在使用中的管道,需要开发先进的非破坏性技术.
研究的目的:
- 开发和验证一种新的超声波技术,用于评估异型管壁平面应力.
- 在螺旋接管道中,建立超声波传播和平面应力之间的关系.
- 评估这种技术的可行性,用于在使用中的管道的非破坏性测量和健康监测.
主要方法:
- 使用了三向纵向的临界折射 (LCR) 波飞行时间 (TOF) 测量.
- 研究了材料异构性对钢板轮中的超声波速度的影响.
- 设计并进行了螺旋接管道的超声波应力系数校准实验.
- 分析了探头压力和表面粗度对超声波TOF的影响.
主要成果:
- 证实了平面应力和超声波TOF之间的联系,特别是在异性质材料中.
- 超声波方法提供了与强制性方法相比,更接近工程应力的主要应力值.
- 确定了探头压力的值,以及表面粗度和TOF之间的线性关系.
结论:
- 开发的超声波技术提供了一种可行的非破坏性方法,用于测量异型螺旋接管道中的平面应力.
- 这种技术非常适合在使用中的管道监控,因为它的非破坏性.
- 这些发现在确保管道的结构完整性和健康监测方面具有重要的潜在应用.
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