TY - GEN
T1 - Interaction of T-stiffener on A0 lamb mode propagation behavior in thin plate
AU - Sun, Jiaying
AU - Yu, Zexing
AU - Xu, Chao
N1 - Publisher Copyright:
Copyright © 2021 by ASME
PY - 2021
Y1 - 2021
N2 - Integrally T-stiffened plates are widely used in aerospace, marine and other engineering structures. When elastic guided wave method is used to detect the damage of such structures, it is necessary to well understand the wave propagation behavior in these structures to further mature the guided wave SHM method. In this paper, the interaction between the fundamental anti-symmetric guided Lamb mode (A0) and T-stiffener in an integrally stiffened thin plate is studied by finite element numerical simulation. The propagation behavior of A0 mode in stiffened plate is actuated using a piezoelectric wafer active sensor. The characteristics of wave propagation caused by the presence of stiffener are analyzed in time domain using response signals and displacement snapshots. The results show that the existence of stiffeners causes obvious mode conversion. With the change of excitation frequency, the reflection and transmission behaviors of guided waves in A0 and S0 modes change obviously.
AB - Integrally T-stiffened plates are widely used in aerospace, marine and other engineering structures. When elastic guided wave method is used to detect the damage of such structures, it is necessary to well understand the wave propagation behavior in these structures to further mature the guided wave SHM method. In this paper, the interaction between the fundamental anti-symmetric guided Lamb mode (A0) and T-stiffener in an integrally stiffened thin plate is studied by finite element numerical simulation. The propagation behavior of A0 mode in stiffened plate is actuated using a piezoelectric wafer active sensor. The characteristics of wave propagation caused by the presence of stiffener are analyzed in time domain using response signals and displacement snapshots. The results show that the existence of stiffeners causes obvious mode conversion. With the change of excitation frequency, the reflection and transmission behaviors of guided waves in A0 and S0 modes change obviously.
KW - Mode conversion
KW - Non-reflective boundary
KW - Stiffened plate
KW - Structural health monitoring
KW - Ultrasonic guided waves
UR - http://www.scopus.com/inward/record.url?scp=85124463594&partnerID=8YFLogxK
U2 - 10.1115/IMECE2021-69529
DO - 10.1115/IMECE2021-69529
M3 - 会议稿件
AN - SCOPUS:85124463594
T3 - ASME International Mechanical Engineering Congress and Exposition, Proceedings (IMECE)
BT - Dynamics, Vibration, and Control
PB - American Society of Mechanical Engineers (ASME)
T2 - ASME 2021 International Mechanical Engineering Congress and Exposition, IMECE 2021
Y2 - 1 November 2021 through 5 November 2021
ER -