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在具有A₀-模式的CFRP链条中进行分层检测Lamb波浪曲率

Gaozheng Zhao^1,2, Yike Zeng¹, Zhenyang Yu¹

¹State Key Laboratory of Fluid Power and Mechatronic Systems, School of Mechanical Engineering, Zhejiang University, Hangzhou 310027, China.

Sensors (Basel, Switzerland)

|April 28, 2025

概括

在碳纤维增强塑料 (CFRP) 面板中超声波检测分层是通过使用A0模式Lamb波场曲率来改进的. 该方法有效地识别了复杂的CFRP结构中的缺陷,为高效的非破坏性测试提供了潜力.

科学领域:

材料科学材料科学材料科学
机械工程机械工程
非破坏性测试是指非破坏性测试.

背景情况:

由碳纤维增强塑料 (CFRP) 制成的钢丝硬化面板容易脱层.
在这些复杂的结构中超声波检测分层是具有挑战性的,因为几何,材料特性和尺寸.
现有的方法可能缺乏对大型CFRP组件的敏感性或适用性.

研究的目的:

建议和验证一种新的CFRP固板的分层检测方法.
为了研究A0模式Lamb波与不同串子位置的分层之间的相互作用.
为了证明波场曲率在识别结构异常方面的有效性.

主要方法:

对A0模式的Lamb波传播和与分层的相互作用进行数值研究.
利用波场曲率的高阶导数性质来检测局部异常.
使用制造的CFRP标本进行实验验证,并与X射线计算机断层扫描进行比较.

主要成果:

波场曲率方法有效地检测了CFRP串硬板中的分层.
数字模拟准确地预测了波分层相互作用.
实验结果证实了该方法的可行性和有效性,与X射线计算机断层扫描结果一致.

结论:

拟议的A0模式Lamb波场曲率方法是CFRP中分层检测的可行技术.
这种方法对局部异常具有高度敏感性,克服了复杂的CFRP结构带来的挑战.
该方法显示了在各种应用中对大型CFRP组件进行高效的非破坏性测试的巨大潜力.

关键词:

在A0模式下.钢铁板材的带线器.检测损坏检测损坏的检测.导向波场的导向波场是指导波场的导向波场.绵羊的波浪绵羊的波浪绵羊的波浪

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