实验证据表明,在拉力负荷下,在一个七线串中存在低频纵向核心导线引导波形态的实验证据
Laurent Laguerre1, Fabien Treyssède1, Pierric Mora1
1GeoEND, GERS-GeoEND, Univ Gustave Eiffel, IFSTTAR, F-44344 Bouguenais, France.
Ultrasonics
|July 16, 2025
概括
研究人员使用实验数据和数值模型研究了预应力七线线程中的引导波传播. 他们证实了在拉伸负荷下低频纵向核心导线引导波模式.
科学领域:
- 结构健康监测 结构健康监测
- 波浪力学 波浪力学
- 材料科学 材料科学 材料科学
背景情况:
- 弹性引导波对于检查延长结构至关重要.
- 在预应力链中引导波传播需要进一步研究.
- 现有的研究提供了有限的数据,在低频范围内为七线串.
研究的目的:
- 实验性地研究在拉伸负荷下在七线丝中引导波的传播.
- 将实验结果与半分析的有限元模型进行比较.
- 为了确认预应力线程中存在特定的引导波模式.
主要方法:
- 获取用于引导波传播的原始实验数据集.
- 使用核心到核心线通过传输配置.
- 使用半分析的有限元模型进行数值比较.
- 在低频范围内 (100 kHz500 kHz) 分析分散图.
主要成果:
- 实验数据捕获了在测试配置中引导波传播的突出特征.
- 散射图揭示了七线链中波浪行为的特征.
- 数字和实验结果显示一致性.
- 证实了低频纵向核心导线导向波模式的存在.
结论:
- 这项研究证实了拉力加载的七线线程中低频纵向核心导线引导波形态.
- 实验和数值方法为引导波行为提供了一致的见解.
- 这一发现有助于理解预应力结构元素中的波传播.
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