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Published on: August 26, 2019
Simulation of guided waves in complex piping geometries using the elastodynamic finite integration technique
Kevin E Rudd1, Kevin R Leonard, Jill P Bingham
1Department of Applied Science, College of William and Mary, Williamsburg, Virginia 23187-8795, USA.
The Journal of the Acoustical Society of America
|April 6, 2007
Summary
This study introduces a numerical simulation for guided elastic waves in complex piping systems. The elastodynamic finite integration technique accurately models wave propagation and interaction with pipe bends and flaws.
Area of Science:
- Mechanical Engineering
- Materials Science
- Non-Destructive Testing
Background:
- Existing pipe inspection technologies struggle with complex geometries like bends and branches.
- Inaccessible regions in piping systems pose significant inspection challenges.
- Accurate modeling of wave propagation in complex piping is crucial for effective inspection.
Purpose of the Study:
- To present a numerical technique for simulating guided elastic wave propagation in piping systems.
- To validate the simulation method against experimental data.
- To demonstrate the simulation's capability in analyzing wave behavior in complex pipe geometries and with flaws.
Main Methods:
- Utilized the elastodynamic finite integration technique (EFIT) for numerical simulation.
- Simulated guided elastic wave propagation in piping systems, including three-dimensional bends.
- Compared simulation results with experimental data for validation.
Main Results:
- Achieved agreement between experimental and simulated data for elastic wave propagation.
- Demonstrated the simulation's ability to model guided wave interaction with flaws.
- Successfully simulated wave propagation and focusing in pipe bends.
Conclusions:
- The EFIT-based simulation method is effective for studying elastic wave propagation in complex piping systems.
- The simulation accurately models wave interactions with pipe bends and flaws.
- This method shows potential as a design tool for pipe inspection hardware and ultrasonic signal processing.
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