Transient Electromagnetic-Thermal Nondestructive Testing
Pulsed Eddy Current and Transient Eddy Current Thermography

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Language: English
Cover of the book Transient Electromagnetic-Thermal Nondestructive Testing

Subjects for Transient Electromagnetic-Thermal Nondestructive Testing

Keywords

carbon fiber reinforced plastic; carbon fiber reinforced polymer; CFRP; coating; composites; conductivity; corrosion development; cross correlation; defect characterization; defect classification; defect diagnosis; delamination; ECPT; eddy current; eddy current pulse phase thermography; eddy current pulsed phase thermography; eddy current pulsed thermography; eddy current step thermography; eddy current thermography; emissivity; fatigue; feature; feature extraction; frequency domain; frequency-to-min phase; gears; honeycomb; imaging inspection; impacts; independent components analysis; inductive thermal imaging; infrared; inside heating thermography; Joule heating; laser thermography; lateral heat conduction; logarithmic analysis; longitudinal heat conduction; machine intelligence; marine corrosion; marine structures; matched filter; microwave thermography; min phase; multidimensional tensor model; nondestructive testing; nondestructive testing and evaluation; parallel crack; pattern mining; phase analysis; physical-mathematical model; principal component analysis; principal components analysis; pulsed eddy current; pulsed phase thermography; pulsed thermography; quantification; quantitative analysis; quantitative evaluation; rail oblique crack; rectangular PEC sensor; reflection mode; scanning thermography; sensor; separation time; sparse greedy; square pulse thermography; square pulsed phase thermography; stress measurement; subsurface defects; support vector machine; thermal diffusion; thermal wave radar; thermooptical flow; through coating heating; through coating imaging; transient electromagnetic-thermal NDT; transmission mode; ultrasound thermography; volume heating thermography (VHT); wavelet

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Transient Electromagnetic-Thermal Nondestructive Testing: Pulsed Eddy Current and Transient Eddy Current Thermography covers three key areas of theories, methods and applications, primarily the multi-physics field, including eddy current, heat conduction and Infrared radiation for defect evaluation, lateral heat conduction, which is analyzed to detect parallel cracks, and longitudinal heat conduction, which is analyzed to detect depth defect, or that which is beyond skin depth.

In addition, the book explores methods, such as time domain, frequency domain and logarithm domain, also comparing A-scan , B-scan and C-scan. Sections on defect identification, classification and quantification are covered, as are advanced algorithms, principal components analysis (PCA), independent components analysis (ICA) and support vector machine (SVM).

The book uses a lot of experimental studies on multi-layer aluminum structures, honeycomb structure, CFRP in the aerospace field, and steel and coating in the marine rail and transportation fields.

1. Nondestructive Testing and Transient Electromagnetic-Thermal NDT

Part I: Pulsed Eddy Current2. Magnetic Sensor Based Pulsed Eddy Current for Defect Detection and Characterization3. Hall Based PEC Features for Material Properties Evaluation and Defect Detection4. Coil-Based Rectangular PEC Sensor for Defect Classification

Part II: Transient Eddy Current Thermography5. Active Thermography and Eddy Current Excited Thermography6. Heat Conduction Based Eddy Current Pulsed Thermography (ECPT) for Defect Evaluation7. Eddy Current Step or Time-resolved Thermography (ECST)8. Eddy Current Pulsed Phase Thermography (ECPPT) for Metal Materials Evaluation9. Volume or Inside Heating Eddy Current Thermography10. Volume Heating ECT and Phase Analysis for CFRP Evaluation11. Pulsed Inductive Thermal Wave Radar (PITWR)12. Through Coating Imaging of Early Marine Corrosion Using ECPPT

Part III: Physical-Mathematical Model Based ECPT for Defect Evaluation13. Separations of ECPT Transient Electromagnetic Thermal Fields14. Unsupervised Sparse Pattern Diagnostic of Defects with ECPT15. Multi-dimensional Tensor-based ECPT for Wind Turbine Gear Inspection16. Physics-based Modeling and Pattern Mining of ECPT

Researchers including post graduates, PhD candidates, which are focused on NDT, condition monitoring, structural health monitoring (SHM), material evaluation, structural integrity assessment (SIA) in universities, colleges and institutes;
Testing personnel in aerospace, transportation, petrochemical, automobile, special equipment industries;
Engineers and developers in companies focusing on EM and thermography NDT;
Trainees in NDT fields;
Dr. He is a lecturer in National University of Defense Technology (NUDT), China. He is also IEEE member and ASNT member. He has published more than 30 papers on peer-reviewed journals and conferences, in which 8 papers have arrived into global 10% and 1 paper has been awarded as highly cited paper in Essential Science Indicators (ESI).
Professor, School of Automation Engineering, University of Electronic Science and Technology of China, Chengdu 611731, China
Assistant Professor, Mechatronics Engineering Department, Faculty of Engineering, International Islamic University Malaysia, PO Box 10, 50728 Kuala Lumpur
Associate Professor, Department of Civil and Architecture Engineering, Changsha University, Changsha, China
  • Presents two kinds of transient NDT testing, from theory and methodology, to applications
  • Includes time domain frequency domain and logarithm domain, which are all analyzed
  • Introduces A-scan , B-scan and C-scan, which are compared
  • Provides experimental studies for real damages, including corrosion and blister in steel, stress in aluminum, impact and delamination in CFRP laminates and RCF cracks are abundant