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Structural Health Monitoring (SHM) is the interdisciplinary engineering field devoted to the monitoring and assessment of structural health and durability. SHM technology integrates remote sensing, smart materials, and computer based knowledge systems to allow engineers see how built up structures are performing over time. It is particularly useful for remotely monitoring large infrastructure systems, such as bridges and dams, and high profile mechanical systems such as aircraft, spacecraft, ships, offshore structures and pipelines where performance is critical but onsite monitoring is difficult or even impossible. Structural Health Monitoring with Piezoelectric Wafer Active Sensors is the first comprehensive textbook to provide background information, theoretical modeling, and experimental examples on the principal technologies involved in SHM.
This textbook can be used for both teaching and research. It not only provides students, engineers and other interested technical specialists with the foundational knowledge and necessary tools for understanding modern sensing materials and systems, but also shows them how to employ this knowledge in actual engineering situations.
• Addresses the problem of aging structures and explains how SHM can alleviate their situation and prolong their useful life.
• Provides a step by step presentation on how Piezoelectric Wafer Active Sensors (PWAS) are used to detect and quantify the presence of damage in structures.
• Presents the underlying theories (piezoelectricity, vibration, wave propagation, etc.) and experimental techniques (E/M impedance, PWAS phased arrays, etc.) to be employed in successful SHM applications.
• Provides an understanding of how to interpret sensor signal patterns such as various wave forms, including analytical techniques like Fast Fourier Transform, Short-time Fourier Transform and Wavelet Transform.
Professional Engineers in Mechanical, Civil and Aerospace Engineering; Manufacturers of primary structural materials, particularly structural metals like steel and aluminum; Manufacturing Engineers in the Aerospace, Aeronautical and Automotive industries; Students in civil, mechanical, aerospace and industrial engineering.
- Introduction; 2. Electroactive and Magnetoactive Materials; 3. Vibration of Solids and Structures; 4. Vibration of Plates; 5. Elastic Waves in Solids and Structures; 6. Guided Waves; 7. Piezoelectric Wafer Active Sensors; 8. Tuned Waves Generated with Piezoelectric Wafer Active Sensors; 9. High–Frequency Vibration SHM with PWAS Modal Sensors: The Electromechanical (E/M) Impedance Method; 10. Wave Propagation SHM with PWAS; 11. In–Situ Phased Arrays with Piezoelectric Wafer Active Sensors; 12. Signal Processing and Pattern Recognition for PWAS–based Structural Health Monitoring; Appendix A. Mathematical Prerequisites; Appendix B. Elasticity Notations and Equations
- No. of pages:
- © Academic Press 2008
- 21st November 2007
- Academic Press
- eBook ISBN:
- Hardcover ISBN:
Dr. Giurgiutiu is an expert in the field of Structural Health Monitoring (SHM). He leads the Laboratory for Active Materials and Smart Structures at the University of South Carolina. He is a regular contributor of papers to leading conferences in the area, received the award Structural Health Monitoring Person of the Year 2003 and is Associate Editor of the international journal, Structural Health Monitoring.
Professor of Mechanical Engineering, University of South Carolina, Columbia, USA
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