Effect of axial stresses on longitudinal guided waves in a fluid-filled pipe.
J Acoust Soc Am
; 153(3): 1612, 2023 Mar.
Article
en En
| MEDLINE
| ID: mdl-37002068
ABSTRACT
This paper describes the study of the acoustic field of a fluid-filled pipe subjected to axial stress based on the acoustoelastic theory. The pipe with applied axial stresses can be approximated as a transversely isotropic pipe, and hence, its acoustic fields can be expressed using potential functions. The velocity changes of longitudinal wave modes with applied stresses are analyzed for the pipe filled with oil by an analytical method. It was found that the longitudinal mode velocity changes almost uniformly with the applied stresses. The high speed and low frequency plateaus of longitudinal wave modes are sensitive to stress. The relationship between stress and the velocity change of the guided wave is given. The results indicate that non-destructive testing techniques using longitudinal wave modes have strong potential to identify and monitor the stress levels in pipe structures.
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Bases de datos:
MEDLINE
Idioma:
En
Revista:
J Acoust Soc Am
Año:
2023
Tipo del documento:
Article
País de afiliación:
China