Tian, "Case study of guided wave
propagation in a one-side water-immersed steel plate," Case Studies in Nondestructive Testing and Evaluation, vol.
For long-range guided wave
inspection, the low frequency range is of primary interest from a wave attenuation point of view The frequency of 100 kHz is therefore selected in this paper.
The impacts of the crack width and fracture angle on the low order guided wave
S0 and A0 amplitudes were studied in a three-layer model (soft tissue, cortical bone, and marrow) using the 2D-FDTD simulation.
where [lambda] is the length of guided waves
, w is the angular velocity, k is the wave number, ] is the Bessel function, coefficients [[alpha].sup.2] = [[omega].sup.2]/[c.sup.2.sub.L], [[beta].sup.2] = [[omega].sup.2]/[c.sup.2.sub.T] - [k.sup.2], [c.sub.L] is the velocity of longitudinal guided wave
, [c.sub.T] is the velocity of transverse guided waves
, and [c.sub.P] is the phase velocity.
When geometry constraints are introduced and the dimensions are close to the wavelength, the wave becomes dispersive and is called a guided wave
. Longitudinal, torsional, and flexural waves propagate in isotropic cylinders.
When establishing the finite element model, meshing is a very important step, and there is a high requirement on the mesh division for the finite element simulation of guided waves
, in which the establishment of defect in the simulation model of the guided wave
is one of the important issues.
Wilcox, "Practical long range guided wave
testing: Applications to Pipes and Rail", Mat.
Overfill Capable Probes -- Magnetrol offers the only guided wave
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The curves represent the processed FEM data by CSM and unfocused guided wave
The guided wave
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* Use the guided wave
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