A time-of-flight mapping method for laser ultrasound guided in a pipe and its application to wall thinning visualization

Piping systems in nuclear power plants (NPPs) are susceptible to flow-accelerated corrosion (FAC) that results in local wall thinning of the piping system. FAC can cause severe piping failure such as leakage and rupture. In this study, a reliable ultrasonic time-of-flight (ToF) mapping system in the...

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Veröffentlicht in:	NDT & E international : independent nondestructive testing and evaluation 2011-12, Vol.44 (8), p.680-691
Hauptverfasser:	Lee, Jung-Ryul, Yenn Chong, See, Jeong, Hyomi, Kong, Churl-Won
Format:	Artikel
Sprache:	eng
Schlagworte:	Acoustical measurements and instrumentation Acoustics Cross-disciplinary physics: materials science rheology Exact sciences and technology Fracture mechanics (crack, fatigue, damage...) Fundamental areas of phenomenology (including applications) Lamb-like wave Laser ultrasonic Materials science Materials testing Measurement and testing methods Physics Pipe wall thinning Solid mechanics Spatial noise map analysis Structural and continuum mechanics Time-of-flight Wavelet transform
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