Results 21 to 30 of about 5,593 (250)
Shock and Vibration, 2012 Structural Health Monitoring (SHM) is the process of damage identification in mechanical structures that encompasses four main phases: damage detection, damage localization, damage extent evaluation and prognosis of residual life.
L.V. Palomino +5 more
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Sensors, 2017 The emergence of composite materials has revolutionized the approach to building engineering structures. With the number of applications for composites increasing every day, maintaining structural integrity is of utmost importance.
Wongi S. Na, Jongdae Baek
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Piezoelectric Electro-Mechanical Impedance (EMI) Based Structural Crack Monitoring
Applied Sciences, 2020 To detect small cracks in plate like structures, the high frequency characteristics of local dynamics were studied with the piezoelectric electro-mechanical impedance (EMI) method, and damages were monitored by the changes of the EMI.
Tao Wang +4 more
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The Scientific World Journal, 2014 This study developed an integrated global-local approach for locating damage on building structures. A damage detection approach with a novel embedded frequency response function damage index (NEFDI) was proposed and embedded in the Imote2.NET-based ...
Tzu-Hsuan Lin +2 more
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IEEE Access, 2018 Bolted joint are among the key components that enable the robust assembly of a wide variety of structures. However, due to wear and tear over time, bolted joint may loosen, and if not detected in its early stages, can lead to devastating results.
Furui Wang +3 more
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Equivalent parameter model of 1-3 piezocomposite with a sandwich polymer
Results in Physics, 2018 A theoretical model was developed to investigate the performance of 1-3 piezoelectric composites with a sandwich polymer. Effective parameters, such as the electromechanical coupling factor, longitudinal velocity, and characteristic acoustic impedance of
Yanjun Zhang, Likun Wang, Lei Qin
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Probabilistic Approach for Electromechanical Impedance-Based SHM Models
OBSERVATÓRIO DE LA ECONOMÍA LATINOAMERICANA, 2023 Applying structural health monitoring techniques has become very important in engineering and aeronautics. The technique based on electromechanical impedance is one of them. In this work, the electromechanical impedance-based SHM technique is applied to determine the existence of damage in an aluminum beam using the Root Square Deviation (RMSD) damage ...
Gislene da Silva Fonseca +4 more
openaire +1 more source
Electromechanical Impedance-Based Damage Detection Using Machine Learning Approaches
Ingeniería e InvestigaciónElectromechanical impedance-based structural health monitoring has been the subject of extensive research in recent decades. The method’s low cost and ability to detect minor structural damages make it an appealing alternative to other non-destructive ...
Paulo Elias Carneiro Pereira +4 more
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Piezoelectric Wafer Active Sensor Transducers for Acoustic Emission Applications
Sensors, 2023 Piezoelectric materials are defined by their ability to display a charge across their surface in response to mechanical strain, making them great for use in sensing applications.
Connor Griffin, Victor Giurgiutiu
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Creep Properties and Deformation Mechanism of Additively Manufactured NiAl‐CrMo Composites
Advanced Engineering Materials, EarlyView.Additively manufactured NiAl‐CrMo composites contain numerous interfaces and cell boundaries that control their creep response. At 700°C under high applied stress, creep is dominated by dislocation‐controlled power‐law mechanisms. At 800°C–900°C and lower stresses, creep is primarily diffusion‐controlled along cell boundaries.
Jan Vollhüter +9 more
wiley +1 more source