Damage localization for composite structure using guided wave signals with Gramian angular field image coding and convolutional neural networks

Y Liao, X Qing, Y Wang, F Zhang - Composite Structures, 2023 - Elsevier
Accurate detection of damage in composite structures is of great significance to ensure safe
service and avoid catastrophic accidents. In this paper, a novel damage diagnosis method …

Unsupervised learning framework for temperature compensated damage identification and localization in ultrasonic guided wave SHM with transfer learning

S Sawant, A Sethi, S Banerjee, S Tallur - Ultrasonics, 2023 - Elsevier
Damage localization algorithms for ultrasonic guided wave-based structural health
monitoring (GW-SHM) typically utilize manually-defined features and supervised machine …

Low frequency ultrasonic guided wave propagation through honeycomb sandwich structures with non-uniform core thickness

AK Mitra, AA Aradhye, DM Joglekar - Mechanical Systems and Signal …, 2023 - Elsevier
Honeycomb core sandwich structures (HCSSs) are used prevalently in the aerospace and
marine industries. Use of guided wave-based inspections has attracted much attention in the …

Ultrasonic lamination defects detection of carbon fiber composite plates based on multilevel LSTM

F Zhang, L Wang, W Ye, Y Li, F Yang - Composite Structures, 2024 - Elsevier
During the production of carbon fiber composites (CFC), various forming methods and
complex processes can introduce different types of defects, with lamination defects being a …

Guided wave based localization and severity assessment of in-plane and out-of-plane fiber waviness in carbon fiber reinforced composites

J Thalapil, S Sawant, S Tallur, S Banerjee - Composite Structures, 2022 - Elsevier
Waviness is a common geometrical defect in carbon fiber reinforced plastics (CFRP) plates,
characterized by local misalignment of an otherwise region of straight fibers. Presence of …

Flexible, monolithic piezoelectric sensors for large-area structural impact monitoring via MUSIC-assisted machine learning

C Zhu, Z Xu, C Hou, X Lv, S Jiang… - Structural Health …, 2024 - journals.sagepub.com
Aircraft smart skin requires the integration of large-scale, ultrathin, and high-sensitive sensor
network on the surface for structural health monitoring (SHM). However, it is fairly difficult to …

Damage localization and identification in WGF/epoxy composite laminates by using Lamb waves: Experiment and simulation

B Yang, FZ Xuan, S Chen, S Zhou, Y Gao, B **, X **qiang, Q Lei, W Jiatao, F Yue… - Journal of …, 2021 - Wiley Online Library
In the application of Structural Health Monitoring (SHM) methods and related technologies,
the transducer used for electroacoustic conversion has gradually become a key component …

Temperature variation compensated damage classification and localisation in ultrasonic guided wave SHM using self-learnt features and Gaussian mixture models

S Sawant, S Patil, J Thalapil… - Smart Materials and …, 2022 - iopscience.iop.org
Conventional damage localisation algorithms used in ultrasonic guided wave-based
structural health monitoring (GW-SHM) rely on physics-defined features of GW signals. In …

Experimental and numerical study of buckling behavior of foam-filled honeycomb core sandwich panels considering viscoelastic effects

M Safarabadi, M Haghighi-Yazdi… - Journal of …, 2021 - journals.sagepub.com
Honeycomb sandwich panels are widely used in marine, aerospace, automotive and
shipbuilding industries. High strength to weight and excellent energy absorption are features …