Numerical Simulation and Experimental Investigation
of Propagation of Guided Waves on Pipe with
Discontinuities in Different Axial Angles
Publication: Publication Date: 1 August 2016Testing Method:
Guided wave testing is the main method used to
detect pipe discontinuities. In this paper, finite
element analysis software was used to perform a
numerical simulation of the propagation of a
guided wave T(0,1) mode in a pipe with discontinuities
at different axial angles. In order to demonstrate
the accuracy of the proposed simulation, the
propagation of the guided wave was examined and
investigated. The numerical simulation and experimental
results were consistent, showing that the
signal of the T(0,1) mode guided wave was too
small to be considered as the signal from the
discontinuity when the axial angle was 45°, and
the reflection coefficient increased by increasing
the axial angle when the axial angle was larger
than 45°. Conversely, the reflection coefficient was
much smaller and decreased by increasing the
axial angle when the axial angle was less than 45°.
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