Passive tomography by elastic guided wave for corrosion detection in pipelines

Une collaboration entre le Laboratoire de Biomécanique et Mécanique des Chocs et l'Institut de Biomécanique Humaine Georges Charpak a été amorcée dans le cadre de cette thèse,

The integrated model used in the analysis included 0.1% modal damping, a 100 Hz bandwidth optical (fringe tracking) control loop, and reaction wheel disturbance

For this work, it has been decided to perform active guided wave tomography by using one ring of piezoelectric transducers and one ring of fiber Bragg grating sensors glued on the

Dropping the amplitude correction term of the Helmholtz equation and using only the gradient of the travel time field, we obtain the eikonal phase velocity map shown in Fig.. 4a,

(a, b) Dispersion curves of the ice at Vallunden Lake obtained using the three displacement components measured along row 125, from (a) the four impulsive sources to the east of

The objective of this work is to study the possibility of using the topological energy method in guided waves for a quantitative evaluation of a corrosion defect in plates and

The present paper is focused on the simplest and fastest beam model for stepped and notched waveguides, which has exhibited a wide frequency range of reasonable coin- cidence with

K EYWORDS : Fictitious Domain Method, High-Order Finite Element Methods, Spectral Element Method, Piezoelectricity, Ultrasonic Guided Waves..