Ultrasonic guided wave propagation in pipes with elbows

Ultrasonic guided wave propagation in pipes with elbows - NASA/ADS

Elbows in a piping system are sufficiently disruptive to guided wave energy that the focusing methods used in practical inspections of straight pipe have not ...

Investigation on ultrasonic guided waves propagation in elbow pipe

In this paper, the axial crack-like defects in 90° elbows are inspected by using the T (0, 1) mode guided waves.

The Analysis of Guided Wave Propagating on Elbow Pipe - NDT.net

However, pipe bends or elbows are known to distort the guided waves due to its anti-symmetric natures in geometry. The interference of the propagating guided ...

Investigation on ultrasonic guided waves propagation in elbow pipe

The propagation of guided waves in the bent pipe is then simulated by using finite element method. The results show that the rates of T (0, 1) mode passing ...

Ultrasonic guided wave propagation in pipes with elbows

Semantic Scholar extracted view of "Ultrasonic guided wave propagation in pipes with elbows" by L. Breon.

Guided Wave Propagation Mechanics Across a Pipe Elbow

On the other hand, the transmission of ultrasonic guided waves can be perturbed by the media inside or outside the pipes [8][9][10][11], the mode conversion due ...

The mode transformation of a T(0,1) guided wave in an elbow pipe ...

The finite element numerical model extracted the guided wave propagation time-domain signal, and then, snapshots of the wavefield propagation ...

Pipe Elbow Inspection with Guided Waves - NDT.net

Due to geometric complexity and flexural mode conversion in pipe elbow regions, guided wave detection of a crack or a defect either in the elbow region or ...

Ultrasonic guided wave detection of U-shaped pipeline

As the propagation characteristics of the guided waves in curved pipes are different from those in straight pipes[1], the propagation of guided waves in elbow- ...

Guided Wave Propagation Mechanics Across a Pipe Elbow | PVP

Wave propagation across a pipe elbow region is complex. Subsequent reflected and transmitted waves are largely deformed due to mode ...

Calculation for Guided Waves in Pipes and Rails - ESM Intranet Site

... wave propagation in a pipe with an elbow and a defect are visualized. The ... [1] J. L. Rose: Guided wave ultrasonic pipe inspection-The next generation, ...

The Analysis of Guided Wave Propagating on Elbow Pipe

Guided wave technique is widely used in the petrochemical plant for pipes inspection. The technique detects corrosion and defects on straight pipes easily.

Investigation on Ultrasonic Guided Waves Propagation in Elbow Pipe

The propagation of guided waves in the bent pipe is then simulated by using finite element method. The results show that the rates of T (0, 1) mode passing ...

A study on guided wave propagation in a long distance curved pipe

When an ultrasonic wave propagates in the circumferential direction like in a curved pipe, the existing torsional wave is converted into a ...

Guided Wave Propagation Mechanics Across a Pipe Elbow

Wave propagation across a pipe elbow region is complex. Subsequent reflected and transmitted waves are largely deformed due to mode conversions at the elbow ...

Ultrasonic Guided Waves in Structure Health Monitoring

Phased array focusing in pipes and across elbows will be highlighted. ... Parameters affecting guided wave propagation in pipe. Pipe diameter and ...

Acoustic Forward Model for Guided Wave Propagation and ... - NCBI

The sections of pipe bends are hot spots for wall thinning due to accelerated corrosion by fluid flow. Conventionally, the thickness of a ...

Pipeline - OSTI.GOV

... ultrasonic guided wave going through girth welds and elbow ... Ultrasonic guided wave propagating along the pipe is also called cylindrical guided wave.

Simulation and visualization of guided wave propagation by large ...

KEYWORDS: Ultrasonic guided wave, Wave propagation, FEM, Piping, Elbow, Welds. * ... guided wave propagation in straight pipes and pipes with elbows. The ...

Scattering of guided waves propagating through pipe bends based ...

The scattering of guided waves propagating through pipe bends is studied by means of normal mode expansion. First, the bi-orthogonality ...