导波超声波测试用于检测聚乙烯管道的裂:实验室实验和数值建模
Jay Shah1, Said El-Hawwat2, Hao Wang2
1Centre of Advance Infrastructure and Transportation, Rutgers-The State University of New Jersey, Piscataway, NJ 08854, USA.
Sensors (Basel, Switzerland)
|June 10, 2023
概括
超声波测试 (UT) 现在可以通过分析引导波相互作用来检测非接聚乙烯 (PE) 管道的裂. 这种进步扩大了UT UT.
科学领域:
- 材料科学 材料科学 材料科学
- 非破坏性测试 不破坏性测试
- 聚合物工程 聚合物工程
背景情况:
- 聚乙烯 (PE) 管道容易形成裂,这是管道故障的主要原因.
- 基于当前引导波的超声波测试 (UT) 主要针对PE管道接区域的缺陷.
- 由于PE的粘弹性和半晶体性质,使检测缺陷变得复杂.
研究的目的:
- 调查UT的可行性,以检测PE管的非接区域的裂.
- 分析引导超声波与PE.不同几何形状的裂之间的相互作用.
- 为了优化检查参数,提高裂纹检测灵敏度.
主要方法:
- 实验室实验使用带有压陶传感器的接捕捉UT系统.
- 对传输的波幅进行分析,以评估波裂相互作用.
- 通过波散和衰减分析进行频率优化,重点关注纵向模式.
- 使用基于有限元素的数值模型进行验证.
主要成果:
- 裂的检测是可行的,可检测性受裂长度相对于波长的影响.
- 与较长的裂相比,较短的裂需要更深的探测深度.
- 裂方向对拟议的UT技术提出了潜在的限制.
- 数字建模证实了实验发现.
结论:
- 超声波测试显示了在非接PE管道中检测裂的巨大潜力.
- 优化的引导波模式和波裂相互作用分析是成功检测的关键.
- 对裂导向效应的进一步研究是全面管道监测的必要条件.
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