Damage Diagnosis using Time-reversal Tomography Technique in SHM

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It is extremely important to ensure that the small damages can be detected at the early age in fields of aerospace, oil, chemical or nuclear industry. The integrity of structure is vital to avoid the potential accident, which requests for fast, simple and low-cost Non-Destructive Testing (NDT) and Structural Health Monitoring (SHM) methods. Motivated by the property of time-reversal and existing problems of traditional UT and guide wave, the goal of the work is the development of a finite size damage detection method for plate-like structures such as aircraft fuselage and marine hulls using time-reversal tomography technique, which can operate as an early detection of damage in such structures.