超声导波对钢丝锚固区缺陷的检测

Proceedings of the 2014 Symposium on Piezoelectricity, Acoustic Waves, and Device Applications Pub Date : 2014-12-29 DOI:10.1109/SPAWDA.2014.6998562

Feng Yang, Yongdong Pan, Wei-zhen Chen

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引用次数: 1

摘要

本文的目的是研究超声波在钢丝中的传播，并确定是否有可能用有限元方法检测和定位缺陷。首先，得到了纵模色散曲线，并进行了解析计算。然后，用有限元法模拟了超声导波在有缺陷和无缺陷钢丝中的传播。考虑到损伤，对v型槽缺陷进行了不同尺寸的口宽和尖端深度建模。结果表明，用有限元方法可以模拟导波在带腐蚀钢丝中的传播。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Defect detection by ultrasonic guided wave for a steel wire in the anchorage zones

The aim of this paper is to investigate the propagation of ultrasonic waves in a steel wire and to determine whether it is possible to detect and locate the defects by the finite element method. First, the dispersion curves of longitudinal modes were obtained and calculated analytically. Then, the ultrasonic guided waves propagating in a steel wire with or without defects were simulated by the finite element method. To take account of the damage, the V-type groove defects were modeled to have different sizes in the mouth width and the tip depth. It is found that the finite element method can be applied to model the guided-wave propagation in a steel wire with corrosions.

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Proceedings of the 2014 Symposium on Piezoelectricity, Acoustic Waves, and Device Applications

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