Defect Detection and Imaging in Composite Structures Using Magnetostrictive Patch Transducers

The use of thin magnetostrictive patches to generate and detect guided waves within the composite samples is investigated for defect detection. This approach has been implemented using SH0 shear horizontal guided waves in both CFRP and GFRP plates. A magnetostrictive patch transducer was able to generate SH0 waves with known directional characteristics. The synthetic aperture focusing technique (SAFT) was then used to reconstruct images of defects using multiple transmission and detection locations. The results for imaging defects in both types of material are presented.

[1]  G. Zhai,et al.  Broadband torsional guided wave magnetostrictive patch transducer with circumferential alternating permanent magnet array for structural health monitoring. , 2022, Ultrasonics.

[2]  S. Dixon,et al.  The Effect of Changes in Magnetic Field and Frequency on the Vibration of a Thin Magnetostrictive Patch as a Tool for Generating Guided Ultrasonic Waves , 2022, Sensors.

[3]  Steven Dixon,et al.  Experimental Study of the Guided Wave Directivity Patterns of Thin Removable Magnetostrictive Patches , 2020, Sensors.

[4]  Chaoyue Hu,et al.  An Improved Longitudinal Mode Guided Wave Received Sensor Based on Inverse Magnetostrictive Effect for Open End Pipes , 2019, Journal of Nondestructive Evaluation.

[5]  Zhifeng Tang,et al.  Signal Strength Enhancement of Magnetostrictive Patch Transducers for Guided Wave Inspection by Magnetic Circuit Optimization , 2019, Applied Sciences.

[6]  Zheng Fan,et al.  Sizing of flaws using ultrasonic bulk wave testing: A review. , 2018, Ultrasonics.

[7]  Ning Wang,et al.  Development of a Novel Guided Wave Generation System Using a Giant Magnetostrictive Actuator for Nondestructive Evaluation , 2018, Sensors.

[8]  A. Arockiarajan,et al.  Studies of the magnetostriction in thin films: Experimental, analytical and numerical analysis , 2015 .

[9]  Young Eui Kwon,et al.  Review of magnetostrictive patch transducers and applications in ultrasonic nondestructive testing of waveguides. , 2015, Ultrasonics.

[10]  Joseph L. Rose,et al.  Ultrasonic Guided Waves in Solid Media , 2014 .

[11]  Guang Meng,et al.  Quantitative damage image construction in plate structures using a circular PZT array and lamb waves , 2014 .

[12]  Rachel S. Edwards,et al.  Scanning laser source Lamb wave enhancements for defect characterisation , 2014 .

[13]  Y. Kim,et al.  Omnidirectional lamb waves by axisymmetrically-configured magnetostrictive patch transducer , 2013, IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control.

[14]  Tadeusz Stepinski,et al.  Synthetic aperture focusing technique with virtual transducer for immersion inspection of solid objects , 2012 .

[15]  Martin Hansen Skjelvareid,et al.  Synthetic aperture ultrasound imaging with application to interior pipe inspection , 2012 .

[16]  H. Ogi,et al.  EMATs for Science and Industry: Noncontacting Ultrasonic Measurements , 2010 .

[17]  Seung-Hyun Cho,et al.  Radiation pattern of Lamb waves generated by a circular magnetostrictive patch transducer , 2007 .

[18]  Lin Ye,et al.  Guided Lamb waves for identification of damage in composite structures: A review , 2006 .

[19]  Hegeon Kwun,et al.  Magnetostrictive Sensor for Generating and Detecting Plate Guided Waves , 2005 .

[20]  R. Kline,et al.  Application of SAFT to Layered, Anisotropic Media , 2005 .

[21]  D. Zellouf,et al.  A SAFT algorithm for lamb wave imaging of isotropic plate-like structures , 2002 .

[22]  Paul D. Wilcox,et al.  Mode and Transducer Selection for Long Range Lamb Wave Inspection , 1999 .

[23]  S. Krishnaswamy,et al.  EMAT Generation and Laser Detection of Single Lamb Wave Modes , 1997 .

[24]  X. Jia.  Modal analysis of Lamb wave generation in elastic plates by liquid wedge transducers , 1997 .

[25]  Peter Cawley,et al.  The excitation of Lamb waves in pipes using dry-coupled piezoelectric transducers , 1996 .

[26]  D. Worlton.  Experimental Confirmation of Lamb Waves at Megacycle Frequencies , 1961 .

[27]  R. B. Thompson.  Physical Principles of Measurements with EMAT Transducers , 1990 .

[28]  H. M. Frost,et al.  3 - Electromagnetic–Ultrasound Transducers: Principles, Practice, and Applications , 1979 .