Damage detection method based on continuous wavelet transform of second harmonic Lamb waves
The nonlinear Lamb waves are sensitive to closed micro cracks and have a great potential
for the detection of damage to prevent the catastrophic failure of entire structure. A five-stage …
for the detection of damage to prevent the catastrophic failure of entire structure. A five-stage …
Efficient finite element modelling of guided wave scattering from a defect in three dimensions
The scattering matrix (S-matrix) encodes the elastodynamic scattering behaviour of a defect.
For the case of guided waves in the low-frequency regime, we explore how to minimise the …
For the case of guided waves in the low-frequency regime, we explore how to minimise the …
[HTML][HTML] Detection of Debonding Defects in Concrete-Filled Steel Tubes Using Fluctuation Analysis Method
C Wang, Y Yang, G Fan, J Lian, F Chen - Sensors, 2024 - mdpi.com
This study presents a comprehensive method for detecting debonding defects in concrete-
filled steel tube (CFST) structures using wave propagation analysis with externally attached …
filled steel tube (CFST) structures using wave propagation analysis with externally attached …
Nonlinear frequency mixing of counter-propagating collinear A0-S0 mode Lamb waves for delamination detection in CFRP composite plate
W Li, Q Wei, J Huang, L **ang, B Liu - Nondestructive Testing and …, 2023 - Taylor & Francis
Delamination is unavoidable during the fabrication or utilisation of carbon fibre reinforced
polymer (CFRP) components. Due to the high sensitivity of the A0 mode for detecting …
polymer (CFRP) components. Due to the high sensitivity of the A0 mode for detecting …
Crack characterisation in a thin plate with unknown acoustic properties based on phase difference of Lamb wave propagation
J Li, H Yang, D Wu - Nondestructive Testing and Evaluation, 2025 - Taylor & Francis
ABSTRACT A method is presented to characterise a crack in a thin plate with unknown
acoustic properties when the position of the acoustic source is approximately known. Due to …
acoustic properties when the position of the acoustic source is approximately known. Due to …
Locating cracks in isotropic plates using nonlinear guided waves
Guided waves are gaining popularity in the NDT (Nondestructive Testing) industry due to
their potential for cost and time savings when inspecting structures and their high sensitivity …
their potential for cost and time savings when inspecting structures and their high sensitivity …
[PDF][PDF] A baseline free method for locating imperfect bolted joints
This paper studies detecting and locating loose bolts using nonlinear guided waves. The 3D
Finite Element (FE) simulation is used for the prediction of guided waves' interactions with …
Finite Element (FE) simulation is used for the prediction of guided waves' interactions with …
A quantitative monitoring method for the pretightening state of bolts based on nonlinear Lamb waves and incremental learning
T Wang, L Tian, J Yang, J **e… - Nondestructive Testing and …, 2024 - Taylor & Francis
The degradation of the pretightening state of bolts is a multistage process. Utilising a single
model to monitor the pretightening state in the full degradation stage and continuously …
model to monitor the pretightening state in the full degradation stage and continuously …
[PDF][PDF] Detecting cracks in isotropic plates using contact acoustic nonlinearity
This paper investigates using second harmonic of symmetric Lamb wave (S0) for detecting
cracks in aluminum plates induced by contact acoustic nonlinearity (CAN) experimentally …
cracks in aluminum plates induced by contact acoustic nonlinearity (CAN) experimentally …
[PDF][PDF] 复合材料修补前后拉伸损伤的非线性超声 Lamb 波检测
朱光宇， 赵江铭， 尹振华， 辛明坤， 郑艳萍 - 科学技术与工程, 2024 - stae.com.cn
摘要为了确保复合材料修补结构后续的稳定性, 需要利用非线性超声Lamb
波对修补后的部位进行健康检测. 利用非线性超声Lamb 波高次谐波响应技术 …
波对修补后的部位进行健康检测. 利用非线性超声Lamb 波高次谐波响应技术 …