Article
Engineering, Mechanical
Junzhen Wang, Yanfeng Shen, Danyu Rao, Wu Xu
Summary: This article investigates a nonlinear Lamb wave time-reversing technique for fatigue crack detection and quantification. The study shows that the physical nonlinear TR method is sensitive to detect and quantify fatigue cracks during experiments.
MECHANICAL SYSTEMS AND SIGNAL PROCESSING
(2021)
Article
Chemistry, Physical
Frank H. G. Stolze, Keith Worden, Graeme Manson, Wieslaw J. Staszewski
Summary: The use of a diffused Lamb wave field is a challenging yet effective method for fatigue-crack detection in multi-riveted strap-joint aircraft panels. The panel is equipped with low-profile surface-bonded piezoceramic transducers, which extract information on fatigue damage through various amplitude characteristics of Lamb waves. Statistical outlier analysis is performed to detect damage, and simplified wave scattering modeling is used to explain complex response features. The results demonstrate the potential and limitations of this method for reliable fatigue-crack detection in complex aircraft components.
Article
Engineering, Multidisciplinary
Haiming Xu, Lishuai Liu, Jichao Xu, Yanxun Xiang, Fu-Zhen Xuan
Summary: The localization of fatigue cracks using nonlinear Lamb waves remains a challenge due to difficulties in decoding location information from acoustic nonlinearity. This study presents a data-driven method using a 1D-Attention-convolutional neural network to precisely locate fatigue cracks using nonlinear Lamb waves. The introduction of the Attention layer allows the model to focus on the nonlinear features dominating crack localization. The proposed method provides a promising and practical way to accurately locate fatigue cracks in large-scale plate-like structures.
STRUCTURAL HEALTH MONITORING-AN INTERNATIONAL JOURNAL
(2023)
Article
Engineering, Mechanical
Hyunseong Lee, Hyung Jin Lim, Travis Skinner, Aditi Chattopadhyay, Asha Hall
Summary: This paper introduces a robust automatic damage diagnosis technique that uses ultrasonic Lamb waves and a deep autoencoder (DAE) to detect and classify fatigue damage in composite structures. The technique accurately detects and classifies fatigue damage in composite structures, while eliminating the need for manual or signal processing-based damage sensitive feature extraction.
MECHANICAL SYSTEMS AND SIGNAL PROCESSING
(2022)
Article
Engineering, Mechanical
Wandong Wang, Lingzhen Li, Ardalan Hosseini, Elyas Ghafoori
Summary: The study proposes an innovative fatigue strengthening solution for metallic structures using iron-based shape memory alloy and bonding technique. Experimental results demonstrate that bonded prestressed Fe-SMA strips are much more effective than traditional CFRP strips in retarding fatigue crack growth, extending the fatigue crack growth life by a factor of 3.51.
INTERNATIONAL JOURNAL OF FATIGUE
(2021)
Article
Materials Science, Characterization & Testing
Wujun Zhu, Zisheng Xu, Yanxun Xiang, Changjun Liu, Mingxi Deng, Xunlin Qiu, Di Sun, Fuzhen Xuan
Summary: The study shows that SCLWs are more sensitive to crack length, width, and orientation angle, making them useful for detecting the evolution of partially closed cracks in metal plates. Additionally, the acoustic nonlinearity parameter increases monotonically with increasing fatigue crack length.
NDT & E INTERNATIONAL
(2021)
Article
Materials Science, Characterization & Testing
Di Sun, Wujun Zhu, Xunlin Qiu, Lishuai Liu, Yanxun Xiang, Fu -Zhen Xuan
Summary: In this paper, a method for accurately detecting closed cracks using nonlinear Lamb waves with phase-velocity mismatching is proposed, which excludes the intrinsic material nonlinearity. Simulations and experimental studies were conducted to analyze the double frequency Lamb waves induced by the closed cracks and the intrinsic material nonlinearity. The results show that the double frequency Lamb waves induced by material nonlinearity are negligible compared to those caused by the contact acoustic nonlinearity of the closed cracks. The proposed method can accurately detect closed cracks, and the acoustic nonlinearity parameter increases monotonically with crack evolution. The findings of this study provide a feasible method for the detection and characterization of closed cracks.
NDT & E INTERNATIONAL
(2023)
Article
Engineering, Mechanical
Yu Fung Lee, Ye Lu
Summary: This study identified fatigue cracks in a steel joint under vibration using nonlinear guided waves based on second harmonic generation. Experimental results were validated using finite element method and a percent reduction in nonlinearity was proposed to evaluate crack length. The outcomes of this study further advance fatigue crack identification and qualification under practical working conditions.
MECHANICAL SYSTEMS AND SIGNAL PROCESSING
(2022)
Article
Engineering, Mechanical
Santhakumar Sampath, Hoon Sohn
Summary: A nonlinear ultrasonic three-wave mixing technique was developed in this study to accurately detect and localize early-stage fatigue cracks. The effectiveness of the proposed technique was validated through experiments with aluminum specimens, and it was found to have higher sensitivity towards fatigue cracks compared to conventional nonlinear ultrasonic techniques.
INTERNATIONAL JOURNAL OF FATIGUE
(2022)
Article
Engineering, Civil
Dengke Zhang, Chuang Cui, Xiang Zhang, Zhenxiong Jiang, Xin Zhang, Yi Bao
Summary: This paper proposes to monitor fatigue cracks in rib-to-deck joints of orthotropic steel decks using ultrasonic Lamb waves. The results show that ultrasonic Lamb waves can effectively monitor fatigue cracks, with positioning errors less than 5 mm. The damage probability distribution increases with the crack depth and length. Ultrasonic Lamb waves are more sensitive to toe-deck and root-deck cracks in rib-to-deck joints.
THIN-WALLED STRUCTURES
(2023)
Article
Chemistry, Multidisciplinary
Jichao Xu, Wujun Zhu, Yanxun Xiang, Yang Gao, Xunlin Qiu
Summary: Nonlinear Lamb waves are being increasingly used to detect and identify microstructural changes. A method focusing on elliptical rings for localizing and imaging micro-cracks in a three-dimensional structure, with imperfect group-velocity matching, has been proposed in this work. The effectiveness of the methodology for damage localization was verified through experimental testing and numerical simulation.
APPLIED SCIENCES-BASEL
(2021)
Article
Materials Science, Multidisciplinary
Sergi Parareda, Daniel Casellas, Marc Mares, Antonio Mateo
Summary: This article presents a new fatigue testing method based on fatigue damage monitoring, which allows determining the fatigue resistance of metallic materials in a short time and with few specimens. The method, named as the stiffness method, monitors the inelastic strains as an indicator of fatigue damage evolution. Digital image correlation techniques are used for strain measurements, which provide more convincing and evident results than other monitoring techniques.
MATERIALS & DESIGN
(2023)
Article
Engineering, Mechanical
Li Wang, Chao Zhang, Chongcong Tao, Hongli Ji, Yu Yang, Jinhao Qiu
Summary: This paper presents a novel method based on modified Paris model and particle filtering framework to predict the fatigue crack growth process of multiple cracks in metal structures. The modified Paris model introduces the mutual interaction between cracks and accurately describes the growth process of multiple fatigue cracks. Lamb waves are used to periodically acquire response signals and a deep autoencoder network is utilized to track the variations of signals and monitor the lengths of multiple cracks. The prediction results of the modified Paris model and real-time measurements of the online monitoring model are strategically fused using particle filtering to reduce uncertainties and obtain reliable prognosis results of multi-crack lengths.
MECHANICAL SYSTEMS AND SIGNAL PROCESSING
(2023)
Article
Engineering, Mechanical
Tareq Al-hababi, Maosen Cao, Nizar Faisal Alkayem, Binkai Shi, Qingyang Wei, Li Cui, Dragosav Sumarac, Minvydas Ragulskis
Summary: This paper discusses the importance of identifying and assessing breathing cracks in fatigue damage, and proposes a robust nonlinear damage factor using Fourier transform. The method demonstrates outstanding performance through detection and quantification of damage, and is recommended for fatigue-breathing crack assessment in beam-like structures.
NONLINEAR DYNAMICS
(2022)
Article
Engineering, Electrical & Electronic
Masoud Mohammadgholiha, Antonio Palermo, Nicola Testoni, Jochen Moll, Luca De Marchi
Summary: This paper presents a novel implementation of Frequency Steerable Acoustic Transducers (FSATs) for guided waves (GWs) inspections. The proposed Piezoceramic FSATs exploit the inherent directional properties of ultrasonic guided waves, leading to significant hardware simplification and cost reductions. Experimental validations using a Scanning Laser Doppler Vibrometer (SLDV) show improved generation of directional GWs in a host structure.
IEEE SENSORS JOURNAL
(2022)
Article
Engineering, Civil
K. Dziedziech, A. Ghosh, J. Iwaniec, B. Basu, W. J. Staszewski, T. Uhl
ENGINEERING STRUCTURES
(2018)
Article
Engineering, Mechanical
Kajetan Dziedziech, Piotr Czop, Wieslaw J. Staszewski, Tadeusz Uhl
MECHANICAL SYSTEMS AND SIGNAL PROCESSING
(2018)
Article
Multidisciplinary Sciences
Kajetan Dziedziech, Alexander Nowak, Alexander Hasse, Tadeusz Uhl, Wieslaw J. Staszewski
PHILOSOPHICAL TRANSACTIONS OF THE ROYAL SOCIETY A-MATHEMATICAL PHYSICAL AND ENGINEERING SCIENCES
(2018)
Article
Green & Sustainable Science & Technology
Phong B. Dao, Wieslaw J. Staszewski, Tomasz Barszcz, Tadeusz Uhl
Article
Mathematics, Applied
Adam Martowicz, Jakub Roemer, Wieslaw J. Staszewski, Massimo Ruzzene, Tadeusz Uhl
ZAMM-ZEITSCHRIFT FUR ANGEWANDTE MATHEMATIK UND MECHANIK
(2019)
Article
Engineering, Mechanical
Adam Martowicz, Jakub Bryla, Wieslaw J. Staszewski, Massimo Ruzzene, Tadeusz Uhl
NONLINEAR DYNAMICS
(2019)
Article
Instruments & Instrumentation
Fuzhen Wen, Shengbo Shan, Rafal Radecki, Wieslaw J. Staszewski, Li Cheng
Summary: The study investigates the generation of fundamental shear horizontal waves using magnetostrictive transducers (MsTs) and their design through establishing a theoretical model based on the shear-lag model and the normal mode expansion method. The theoretical model is validated through finite element simulations and experimental results, showing good agreement between predicted and actual outcomes, while also exploring the influences of coil configuration and bonding conditions. This research provides guidelines for system design and optimization for generating fundamental shear horizontal waves in guided-wave-based structural health monitoring applications.
SMART MATERIALS AND STRUCTURES
(2021)
Article
Chemistry, Physical
Phong B. Dao, Wieslaw J. Staszewski
Summary: This study proposed a statistical analysis method based on the stationarity of Lamb waves for structural health monitoring. By comparing unit root testing methods on Lamb wave data, it was found that ADF and KPSS tests were effective in detecting damages.
Article
Chemistry, Physical
Kajetan Dziedziech, Wieslaw Jerzy Staszewski, Krzysztof Mendrok, Biswajit Basu
Summary: This paper proposes a method using time-variant transmissibility to detect structural damage. By applying time-frequency transmissibility and relevant coherence function, abrupt damage-related changes to structural dynamics can be monitored.
Article
Engineering, Mechanical
Krzysztof Czelusniak, Wieslaw J. Staszewski, Francesco Aymerich
Summary: This paper proposes a higher order spectral analysis method based on nonlinear vibroacoustic modulations for structural damage detection. By combining low-frequency vibration and high-frequency ultrasonic excitation, the response data are analyzed using modulation signal bispectrum and bicoherence. A method for structural damage detection is proposed by analyzing the local amplitude and phase of these characteristics.
MECHANICAL SYSTEMS AND SIGNAL PROCESSING
(2022)
Article
Acoustics
M. Osika, A. Ziaja-Sujdak, R. Radecki, L. Cheng, W. J. Staszewski
Summary: This study focuses on the analytical investigation of nonlinear shear horizontal guided wavefields in plates, examining the impact of nonlinear material parameters, excitation frequency, wave number, and wave amplitude on nonlinear mode generation. The analytical solution is based on the multiple-scale perturbation method and modal decomposition approach, validated using the Local Interaction Simulation Approach.
JOURNAL OF SOUND AND VIBRATION
(2022)
Proceedings Paper
Engineering, Civil
Jan Dlugosz, Phong Ba Dao, Wieslaw J. Staszewski, Tadeusz Uhl
Summary: Vision based techniques, including thermography, video-based methods and hyperspectral imaging method, have been successfully applied in Structural Health Monitoring (SHM). Hyperspectral Imaging (HSI), as a method of obtaining an array of two-dimensional images over a wide range of wavelengths, has found applications in various fields. This study aims to develop a technique for damage detection in glass fibre reinforced polymer composites using HSI, and compares two different approaches for damage detection.
EUROPEAN WORKSHOP ON STRUCTURAL HEALTH MONITORING (EWSHM 2022), VOL 2
(2023)
Proceedings Paper
Engineering, Civil
Mariusz Osika, Aleksandra Ziaja-Sujdak, Rafal Radecki, Wieslaw J. Staszewski
Summary: This study focuses on structural health monitoring methods based on the nonlinear features of propagating ultrasonic waves. By experimentally scrutinizing the nonlinear modulation transfer for shear horizontal guided waves, conclusions are drawn regarding the influence of excitation parameters on modulation transfer intensity. The findings contribute to the development of monitoring methods for widespread plate-like mechanical structures based on the modulation transfer phenomenon.
EUROPEAN WORKSHOP ON STRUCTURAL HEALTH MONITORING (EWSHM 2022), VOL 1
(2023)
Proceedings Paper
Engineering, Civil
Rafal Radecki, Aleksandra Ziaja-Sujdak, Mariusz Osika, Wieslaw J. Staszewski
Summary: The influence of nonlinear effects on ultrasonic waves in solids has been increasingly studied. Researchers have explored various nonlinear sources, with a particular focus on nonlinear crack motion and its impact on higher-order harmonics and/or side harmonics. This paper investigates the nonlinear shear motion between crack interfaces and provides an analytical solution based on Coulomb's friction model.
EUROPEAN WORKSHOP ON STRUCTURAL HEALTH MONITORING (EWSHM 2022), VOL 1
(2023)
Proceedings Paper
Engineering, Civil
Aleksandra Ziaja-Sujdak, Mariusz Osika, Rafal Radecki, Wieslaw J. Staszewski
Summary: The interaction between ultrasonic waves and structural defects leads to various physical phenomena, one of which is heat generation near cracks. This study employs coupled thermoelastic theory to investigate the behavior of ultrasonic waves in a homogeneous isotropic structure with local nonlinearity, and numerical simulations are used to analyze the influence of heat dissipation at cracks on propagating ultrasonic waves.
EUROPEAN WORKSHOP ON STRUCTURAL HEALTH MONITORING (EWSHM 2022), VOL 1
(2023)
