Two-Dimensional Damage Localization Using a Piezoelectric Smart Aggregate Approach-Implementation on Arbitrary Shaped...

Area of Science:

• Structural Health Monitoring
• Materials Science
• Non-Destructive Testing

Background:

• Concrete structures are susceptible to damage, necessitating effective monitoring techniques.
• Accurate damage localization is crucial for assessing structural integrity and planning repairs.
• Existing methods may have limitations in handling complex geometries or multiple damage scenarios.

Purpose of the Study:

• To present a novel hybrid approach for damage localization in concrete plates.
• To validate the method's efficacy on plates with arbitrary geometric shapes and varying damage conditions.
• To establish a foundation for further research into advanced structural health monitoring.

Main Methods:

• Hybrid algorithm combining fast discrete wavelet transformation, energy approach, and time of flight criteria.
• Modeling of piezoelectric smart aggregates and ultrasonic wave propagation.
• Experimental and numerical verification on square plates with controlled damage and sensor configurations.

Main Results:

• Successful localization of single and multi-damage problems within and on the periphery of concrete plates.
• Demonstrated accuracy and reliability of the hybrid method across different damage scenarios.
• Validation of the approach on square plates, paving the way for complex geometries.

Conclusions:

• The proposed hybrid method is effective for damage localization in concrete plates of arbitrary geometric shapes.
• The technique shows promise for real-world applications in structural health monitoring of concrete infrastructure.
• The numerical procedures offer a versatile platform for future research and development in damage detection.