纵向波散射在薄板中具有对称的损伤,考虑到倾斜的发生
Kayc W Lopes1, Camila G Gonsalez-Bueno2, Daniel J Inman3
1Department of Mechanical Engineering, São Paulo State University, School of Engineering of Ilha Solteira, Ilha Solteira, SP, 15385-000, Brazil.
Ultrasonics
|September 30, 2023
概括
这项研究增强了超声波传播分析,用于在薄板中检测损伤. 它介绍了一种方法,使用波散射和传感器调整精确定位和尺寸损伤.
科学领域:
- 材料科学 材料科学 材料科学
- 机械工程 机械工程
- 声学 声学 在声学方面
背景情况:
- 超声波与损伤的相互作用是非破坏性测试和结构健康监测的关键.
- 了解波传播对于开发先进的损害检测技术至关重要.
研究的目的:
- 为了研究在斜冲击下对称损伤的薄板中的纵向波传播.
- 开发一种方法来确定损坏造成的板厚减小.
- 分析波散射及其与损坏特征的关系.
主要方法:
- 模拟波传播,考虑到超声波的斜率发生.
- 单独计算反射和传输的波包来描述散射.
- 使用圆形执行器进行数值模拟和实验验证.
主要成果:
- 传感器尺寸调整可以改善损坏检测和深度测定.
- 该方法有效量化了由于损坏而导致的板厚减少.
- 激发频率,损伤参数和传感器大小影响波浪传播.
结论:
- 这些发现有助于我们更好地理解带导波与不连续性的相互作用.
- 这项研究支持使用波传播来测量损害大小,而不仅仅是检测.
- 这项研究有助于改善结构健康监测中的波传播分析.
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