Results 21 to 30 of about 5,534 (210)
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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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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Electromechanical Impedance Response of a Cracked Timoshenko Beam
Sensors, 2011 Typically, the Electromechanical Impedance (EMI) technique does not use an analytical model for basic damage identification. However, an accurate model is necessary for getting more information about any damage.
Cuiqin Wu +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
Applied Sciences, 2018 (Bi0.5Na0.5)0.94Ba0.06TiO3 dense ceramics were obtained from autocombustion sol-gel synthesized nanopowders and sintered at 1050 °C for 1–2 h for the study of the electromechanical anisotropy. Measurement of the complex impedance spectrum was carried out
Nicolás Pérez +3 more
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Piezoelectric Sensor-Embedded Smart Rock for Damage Monitoring in a Prestressed Anchorage Zone
Sensors, 2021 In this paper, a piezoelectric sensor-embedded smart rock is proposed for the electromechanical impedance monitoring of internal concrete damage in a prestressed anchorage zone.
Quang-Quang Pham +2 more
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Soft Mechanical‐Electrical Logic Using Liquid Metal‐Filled 3D‐Printed Architectures
Advanced Engineering Materials, EarlyView.We present 3D‐printed soft mechanical–electrical logic elements that use liquid metal–filled silicone tubes actuated by thermoplastic polyurethane/polylactic acid (TPU/PLA) architectures to produce Boolean operations. Complementary normally open and normally closed unit cells perform repeatable binary transitions and can be combined into more complex ...
Christoph Lehmann +2 more
wiley +1 more source