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Khoshmanesh, S. (author)Developing an effective blade structural health monitoring (SHM) system is important for the wind energy industry. This has challenged the scientific communities for years, and still, the problem has not been solved. This research aims to find a solution to this problem and provide a basis for further research in this field. The failure rate and...doctoral thesis 2024
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Khoshmanesh, S. (author), Watson, S.J. (author), Zarouchas, D. (author)Wind turbine blades carry the risk of impact damage during transportation, installation, and operation. Such impacts can cause levels of damage that can propagate throughout the structure compromising performance and safety. In this study, the effect of impact damage on fatigue damage propagation in test specimens representative of a spar cap...journal article 2024
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Lima, R. A.A. (author), Tao, R. (author), Bernasconi, A.C. (author), Carboni, M. (author), Teixeira De Freitas, S. (author)This study uses the acoustic emission structural health monitoring method to identify fracture mechanisms in composite bonded joints when varying the substrate stacking sequence. Quasi-static mode I loading tests were performed on secondary adhesively bonded multidirectional composite substrates (0, 90, 45, −45, 60 and −60° fibre orientations...journal article 2024
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Holthuizen, Patrick (author), Zhou, Y. (author), Šavija, B. (author), Copuroglu, Oguzhan (author)The Stiffness Damage Test (SDT), a cyclic test in compression, is considered as a reliable tool for assessing concrete structures affected by ASR. Depending on the extent of ASR damage in concrete, loading levels up to 40% of the compressive strength may contribute to increasing internal damage during testing. Nevertheless, previous research...book chapter 2024
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Shiotani, T. (author), Ogura, N. (author), Okude, N. (author), Watabe, K. (author), Van Steen, C. (author), Tsangouri, E. (author), Lacidogna, G. (author), Czarnecki, S. (author), Chai, H. K. (author), Yang, Y. (author), Verstrynge, E. (author), Aggelis, D. G. (author)Aging infrastructure globally faces degradation, posing risks and requiring substantial repair investment. Strategic maintenance practices are crucial for evaluating structural conditions and ensuring sustainability. The growing demands on modern materials and structures necessitate enhanced health monitoring approaches. Shifting from...journal article 2024
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Ambrosini, D. (author), Zarouchas, D. (author), Pirondi, Alessandro (author), Vescovi, Luca (author)RFID (Radio Frequency Identification) is commonly used to monitor goods along the supply chain. The feasibility of the application of a RFID tag to monitor CFRP components was demonstrated in a previous work by some of the authors. This work is aimed at evaluating how the integration of a RFID tag inside a CFRP laminate affects the quasi...journal article 2024
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Zhang, Xinshuo (author)Non-Destructive Testing (NDT) of infrastructures has become an increasingly prominent topic in contemporary society with great significance in terms of safety, economy and environmental protection. Acoustic Emission (AE) technology is a representative NDT technology based on passive ultrasonic guided waves, which has the advantages of large...master thesis 2023
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Cheng, L. (author)In the past two decades, offshore wind has emerged as a new source of renewable energy. This highlights the requirement for the utilisation of larger and more efficient offshore wind turbines (OWTs). The connections used in support structures of OWTs are critical to ensure the excellent structural performance of OWFs. An alternative option is...doctoral thesis 2023
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Perez, Paul (author)Desert sand acoustic emissions are produced when a “sonic sand” is sheared locally or by a natural dune slipface avalanche, resulting in a brassy sound between 50 and 400 Hz. This type of sediment exhibits particular granulometric, shape and surface characteristics, due to the grains’ erosion and transport history, and emits sounds when the...master thesis 2023
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Alkhateeb, S. (author), Riccioli, F. (author), Morales, Felipe Leon (author), Pahlavan, Lotfollah (author)Offshore support structures and mooring systems are predominantly subject to corrosion and fatigue. These structures are typically covered with marine growth of various types. Conventional inspection methods for assessment of the structural integrity require access to the cleaned surface of these structures; however, the cleaning process is...journal article 2023
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Zhang, F. (author), Yang, Y. (author), Hendriks, M.A.N. (author)To assess the structural capacity of reinforced concrete structures, identifying the internal cracks is important. Acoustic emission (AE) is promising to estimate the location of internal cracks. However, the localization is influenced by many factors like arrival time picking error, presence of crack, etc., resulting in localization error. The...journal article 2023
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Fotouhi, Sakineh (author), Assaad, Maher (author), Nasor, Mohamed (author), Imran, Ahmed (author), Ashames, Akram (author), Fotouhi, M. (author)The aim of this study was to find the correlation between failure modes and acoustic emission (AE) events in a comprehensive range of thin-ply pseudo-ductile hybrid composite laminates when loaded under uniaxial tension. The investigated hybrid laminates were Unidirectional (UD), Quasi-Isotropic (QI) and open-hole QI configurations composed of S...journal article 2023
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Moradi, M. (author), Chiachío, Juan (author), Zarouchas, D. (author)Composite structures are highly valued for their strength-to-weight ratio, durability, and versatility, making them ideal for a variety of applications, including aerospace, automotive, and infrastructure. However, potential damage scenarios like impact, fatigue, and corrosion can lead to premature failure and pose a threat to safety. This...conference paper 2023
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Ghahremani, Parsa (author), Najafabadi, Mehdi Ahmadi (author), Alimirzaei, Sajad (author), Fotouhi, M. (author)This study investigates the mechanical behavior and damage mechanisms of thin-walled glass/epoxy filament wound tubes under quasi-static lateral loads. The novelty is that the tubes are reinforced in critical areas using strip composite patches to provide a topology-optimized tube, and their damage mechanisms and mechanical performance are...journal article 2023
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Zhou, Y. (author), Liang, M. (author), Yue, X. (author)Large errors can be introduced in traditional acoustic emission (AE) source localization methods using extracted signal features such as arrival time difference. This issue is obvious in the case of irregular structural geometries, complex composite structure types or presence of cracks in wave travel paths. In this study, based on a novel...journal article 2023
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Pan, Tanbo (author), Zheng, Yonglai (author), Zhou, Y. (author), Luo, Wenbin (author), Xu, Xubing (author), Hou, Chenyu (author), Zhou, Yujue (author)This study presents a damage pattern recognition approach for corroded steel beams strengthened by CFRP anchorage system based on acoustic emission clustering analysis. The proposed method includes four steps: acoustic emission signal acquisition, feature extraction, clustering analysis, and damage pattern recognition. Four corroded beams...journal article 2023
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Naderloo, M. (author), Veltmeijer, A.V. (author), Jansen, J.D. (author), Barnhoorn, A. (author)Recent laboratory and field studies suggest that temporal variations in injection patterns (e.g., cyclic injection) might trigger less seismicity than constant monotonic injection. This study presents results from uniaxial compressive experiments performed on Red Felser sandstone samples providing new information on the effect of stress...journal article 2023
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Saeedifar, M. (author), Saleh, M. (author), Krairi, Anouar (author), Teixeira De Freitas, S. (author), Zarouchas, D. (author)The present study proposes a comprehensive integrity assessment approach for a full-scale adhesively-bonded bi-material joint for maritime applications. The joint represents a cross-section of the bond-line connection of a ship with a steel hull and a sandwich composite superstructure. The full-scale joint consists of a sandwich composite...journal article 2023
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de Araujo Alves Lima, Rosemere (author), Tao, R. (author), Bernasconi, A. (author), Carboni, Michele (author), Carrere, Nicolas (author), Teixeira De Freitas, S. (author)Understanding the relationship between the sensors’ outputs and the damage evolution within the joints is becoming increasingly crucial to improving structural health monitoring systems and collecting data to improve the joint’s design. Therefore, a study of the acoustic emission method associated with visual fracture evaluation was proposed to...poster 2023
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Galanopoulos, Georgios (author), Milanoski, Dimitrios (author), Eleftheroglou, N. (author), Broer, Agnes A.R. (author), Zarouchas, D. (author), Loutas, Theodoros (author)An increasing interest for Structural Health Monitoring has emerged in the last decades. Acoustic emission (AE) is one of the most popular and widely studied methodologies employed for monitoring, due to its capabilities of detecting, locating and capturing the evolution of damage. Most literature so far, has employed AE for characterizing...journal article 2023