Structural Health Monitoring (SHM) in Aerospace Structures provides readers with the spectacular progress that has taken place over the last twenty years with respect to the area of Structural Health Monitoring (SHM). The widespread adoption of SHM could both significantly improve safety and reduce maintenance and repair expenses that are estimated to be about a quarter of an aircraft fleet's operating costs.

The SHM field encompasses transdisciplinary areas, including smart materials, sensors and actuators, damage diagnosis and prognosis, signal and image processing algorithms, wireless intelligent sensing, data fusion, and energy harvesting. This book focuses on how SHM techniques are applied to aircraft structures with particular emphasis on composite materials, and is divided into four main parts.

Part One provides an overview of SHM technologies for damage detection, diagnosis, and prognosis in aerospace structures. Part Two moves on to analyze smart materials for SHM in aerospace structures, such as piezoelectric materials, optical fibers, and flexoelectricity. In addition, this also includes two vibration-based energy harvesting techniques for powering wireless sensors based on piezoelectric electromechanical coupling and diamagnetic levitation. Part Three explores innovative SHM technologies for damage diagnosis in aerospace structures. Chapters within this section include sparse array imaging techniques and phase array techniques for damage detection. The final section of the volume details innovative SHM technologies for damage prognosis in aerospace structures.

This book serves as a key reference for researchers working within this industry, academic, and government research agencies developing new systems for the SHM of aerospace structures and materials scientists.

• Provides key information on the potential of SHM in reducing maintenance and repair costs
• Analyzes current SHM technologies and sensing systems, highlighting the innovation in each area
• Encompasses chapters on smart materials such as electroactive polymers and optical fibers

Part One: SHM Technologies for Damage Detection, Diagnosis and Prognosis in Aerospace Structures: Application and Efficient Use 1. Integrated Vehicle Health Management (IVHM) 2. A Novel Approach for Implementing Structural Health Monitoring Systems for Aerospace Structures Part Two: Smart Materials for SHM in Aerospace Structures 3. Piezoelectric Materials for SHM in Aerospace Structures 4. Electroactive Polymers for SHM in Aerospace Structures 5. Using Optical Fibers for Ultrasonic Damage Detection in Aerospace Structures 6. Flexoelectricity in Aerospace Structures 7. Energy Harvesting using Piezoelectric Materials in Aerospace Structures 8. Diamagnetically Levitated Vibration Energy Harvester in Aerospace Structures Part Three: Innovative SHM Technologies for Damage Diagnosis in Aerospace Structures 9. Array Imaging with Guided Waves under Variable Environmental Conditions 10. Phase Array Techniques for Damage Detection in Aerospace Structures 11. Defect detection, classification and sizing using ultrasound 12. Non-contact Laser Ultrasonics for SHM in Aerospace Structures 13. Nonlinear Ultrasonics for Health Monitoring of Aerospace Structures using Active Sparse Sensor Networks 14. Space-Wavenumber and Time-Frequency Analyses for Vibration- and Wave-based Damage Diagnosis Part Four: Innovative SHM Technologies for Damage Prognosis in Aerospace Structures 15. Fatigue damage diagnosis and prognosis using EMI technique 16. An Energy-based Prognostic Framework to Predict Evolution of Damage