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[期刊论文]

Generating Guided Waves in Isotropic Plates for Defect Detection with a Bulk Shear Wave Transducer

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作者:

Zhang, Xuecong (Zhang, Xuecong.) | He, Cunfu (He, Cunfu.) (学者:何存富) | Lu, Yan (Lu, Yan.) | 展开

收录:

SCIE

摘要:

Bulk shear wave (BSW) transducers are usually used to generate bulk shear waves to detect defects. In the study, we generated guided waves in a steel plate for defect detection with a BSW transducer. A 0.5-MHz BSW transducer was coupled on a steel plate (1200 mmx610 mmx0.2 mm) with a couplant. We firstly identified the generated wave modes and then experimentally validated the propagation directions. The guided waves were classified into Lamb waves (S-0 and A(0) modes) and shear horizontal waves (SH0 mode) and the primary modes were S-0 and SH0 propagating in two perpendicular directions. In this way, rectangular through-thickness notches with the orientations of 0 degrees and 90 degrees in the plate were detected by S-0 and SH0 modes with a BSW transducer. The results validated that the S-0 mode or SH0 mode might be used to detect the defects by turning the BSW transducer and that the BSW transducer could excite SH0 mode to detect rectangular cracks of 0 degrees and 90 degrees and excite So mode to detect the cracks of 0 degrees. The study provided a fast and convenient method to generate Lamb and SH waves for defect detection.

关键词:

mode identification bulk shear wave transducer defect detection ultrasonic guided wave

作者机构:

  • [ 1 ] [Zhang, Xuecong]Beijing Univ Technol, Coll Mech Engn & Appl Elect Technol, Beijing 100124, Peoples R China
  • [ 2 ] [He, Cunfu]Beijing Univ Technol, Coll Mech Engn & Appl Elect Technol, Beijing 100124, Peoples R China
  • [ 3 ] [Lu, Yan]Beijing Univ Technol, Coll Mech Engn & Appl Elect Technol, Beijing 100124, Peoples R China
  • [ 4 ] [Wu, Bin]Beijing Univ Technol, Coll Mech Engn & Appl Elect Technol, Beijing 100124, Peoples R China

通讯作者信息:

  • [Zhang, Xuecong]Beijing Univ Technol, Coll Mech Engn & Appl Elect Technol, Beijing 100124, Peoples R China

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来源 :

JOURNAL OF THE CHINESE SOCIETY OF MECHANICAL ENGINEERS

ISSN: 0257-9731

年份: 2017

期: 6

卷: 38

页码: 683-694

0 . 2 0 0

JCR@2022

ESI学科: ENGINEERING;

ESI高被引阀值:165

中科院分区:4

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WoS核心集被引频次: 0

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