Ultrasonic Guided Wave Technology Based on Group Velocity Calibration and Its Application for Defect Detection in Composite Plates

2012 ◽  
Vol 48 (20) ◽  
pp. 8 ◽  
Author(s):  
Zenghua LIU
Keyword(s):  
Group Velocity ◽  
Defect Detection ◽  
Composite Plates ◽  
Guided Wave ◽  
Wave Technology ◽  
Ultrasonic Guided Wave ◽  
Velocity Calibration

Defect detection performance of the UCSD non-contact air-coupled ultrasonic guided wave inspection of rails prototype

2016 ◽  
Author(s):  
Stefano Mariani ◽  
Thompson V. Nguyen ◽  
Simone Sternini ◽  
Francesco Lanza di Scalea ◽  
Mahmood Fateh ◽  
...  
Keyword(s):  
Defect Detection ◽  
Detection Performance ◽  
Guided Wave ◽  
Ultrasonic Guided Wave

Defect detection in pipes using Van der Pol systems based on ultrasonic guided wave

2021 ◽  
pp. 104577
Author(s):  
Jing Wu ◽  
Fei Yang ◽  
Lin Jing ◽  
Zhongming Liu ◽  
Yizhou Lin ◽  
...  
Keyword(s):  
Defect Detection ◽  
Guided Wave ◽  
Van Der Pol ◽  
Ultrasonic Guided Wave

scholarly journals Research on ultrasonic guided wave dispersion compensation for steel strand defect detection

2020 ◽  
Vol 740 ◽  
pp. 012101
Author(s):  
Molin Zhao ◽  
Haisheng Wang ◽  
Bin Xue ◽  
Yonggang Yue ◽  
Pengfei Zhang ◽  
...  
Keyword(s):  
Defect Detection ◽  
Dispersion Compensation ◽  
Wave Dispersion ◽  
Guided Wave ◽  
Ultrasonic Guided Wave ◽  
Steel Strand

A review on ultrasonic guided wave technology

2017 ◽  
Vol 18 (1) ◽  
pp. 32-44 ◽  
Author(s):  
En Hong Ling ◽  
Ruzairi Hj. Abdul Rahim
Keyword(s):  
Guided Wave ◽  
Wave Technology ◽  
Ultrasonic Guided Wave

Time delay comb transducers for aircraft inspection

2009 ◽  
Vol 113 (1144) ◽  
pp. 417-427 ◽  
Author(s):  
F. Yan ◽  
J. L. Rose
Keyword(s):  
Time Delay ◽  
Material Properties ◽  
Poynting Vector ◽  
Composite Plates ◽  
Guided Wave ◽  
Plate Structures ◽  
Reinforced Composite ◽  
Ultrasonic Guided Wave ◽  
Wave Technique ◽  
Skew Angles

Abstract An ultrasonic guided wave technique based on time delay comb transducers is introduced for aircraft inspection. It is demonstrated that for isotropic plate structures the time delay comb transducers with appropriate excitation are capable of performing discontinuity detections without knowing the precise isotropic material properties of the objects being inspected. Fibre-reinforced composite plates are also considered. The wave skew effects are investigated using both the slowness curve and the Poynting vector. A composite inspection technique that takes advantage of the skew effects is proposed. Using time delay comb transducers to excite the guided wave modes with different skew angles, the proposed technique is capable of scanning the composite plate in different directions without moving or rotating the transducers. By contrast with the applications in the isotropic cases, knowledge of the material properties and other necessary information that is needed to produce dispersion curves is generally required. Experimental results are provided as a validation of the proposed techniques.

CONSTANT GROUP VELOCITY ULTRASONIC GUIDED WAVE INSPECTION FOR CORROSION AND EROSION MONITORING IN PIPES

2009 ◽  
Author(s):  
Geir Instanes ◽  
Audun Pedersen ◽  
Mads Toppe ◽  
Peter B. Nagy ◽  
Donald O. Thompson ◽  
...  
Keyword(s):  
Group Velocity ◽  
Guided Wave ◽  
Ultrasonic Guided Wave ◽  
Constant Group
Sign in / Sign up

Export Citation Format

Share Document