Open AccessSimulation on guided waves in the pipe with defects
Author(s) -
Peng Ding,
Guoqiang Ma,
Lei Guan,
Chao Lü,
Lei Xu
Publication year - 2020
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1605/1/012014
Subject(s) - reflection (computer programming) , reflection coefficient , transmission coefficient , transmission (telecommunications) , optics , mode (computer interface) , acoustics , ultrasonic sensor , finite element method , materials science , physics , engineering , computer science , telecommunications , programming language , operating system , thermodynamics
In this paper, the finite element numerical simulation is used. The transmission and reflection of both L (0,1) mode and F(1,1) mode of the ultrasonic guided wave were simulated. The transmission and reflection of the ultrasonic guided wave in the pipe were analyzed when the defect in different axial, circumferential, and depth. When the defect’s size changes in the axial direction and circumferential direction, the trend of the two kinds modes’ reflection coefficient is the same. In a certain size, the reflection coefficient of F(1,1) is higher than the L(0,1). When the depth of the effect change, the trend of the two modes’ reflection coefficient is different.