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Wave-based NDT methods allow for reliable and rapid evaluation of civil engineering infrastructure. These methods are particularly useful in long-range inspection; for example, in pipelines, where the wave-based NDT can provide data on hundreds of meters of piping in a matter of seconds.
In this course, students will learn about wave-based NDT methods, including ultrasonic inspection, acoustic emission, resonant frequency testing, and electromechanical impedance testing. The topics include piezoelectric effect, basic principles of various wave-based NDT methods, and their associated data acquisition.
The course also includes case studies so students can apply the knowledge to field inspection or monitoring of materials and structures.
Overview
Syllabus
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Week 1:
- Introduction to Piezoelectricity
- Fundamentals of Piezoelectricity
- Piezoelectric Characterization
- Piezoelectric Transducer
- Types of Piezoelectric Transducers
- Example Piezoelectric Transducer Fabrication
Week 2:
- Basic Principles of Ultrasound
- Measurement Techniques of Ultrasonic Inspection
- Couplant Gel
- Signal Processing & Visualization
- Ultrasonic NDT in Concrete Testing
Week 3:
- Acoustic Emission Basic Principle
- AE Inspection Equipment
- AE Signal Features
- AE Inspection Applications
Week 4:
- Resonant Frequency Testing Principle
- RF Inspection Equipment
- Case Studies
Week 5:
- Electromechanical Impedance (EMI) Testing Methods
- EMI Spectrum
- EMI Data Processing
- EMI Applications
- EMI Case Study
