Results 11 to 20 of about 4,513 (205)
Optimized design for a piezoelectric ultrasonic transducer based on the six-terminal network
工程科学学报, 2022 As an effective method for efficient precision machining of hard and brittle materials, ultrasonic-assisted machining has been widely researched and applied over the past years.
Shi-jie LIU +3 more
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Electrical Impedance Spectroscopy for Electro-Mechanical Characterization of Conductive Fabrics
Sensors, 2014 When we use a conductive fabric as a pressure sensor, it is necessary to quantitatively understand its electromechanical property related with the applied pressure.
Tushar Kanti Bera +7 more
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Applied Sciences, 2020 The structural integrity of post-tensioning prestressed concrete structures with tendon ducts highly depends on the grouting quality in construction. This paper proposes a real-time approach to monitoring the grouting compactness in tendon ducts using ...
Bin Guo +3 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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Developments in the Built Environment, 2022 The piezoelectric-based smart strand technique could effectively monitor the prestress (PS) force in post-tensioned systems. In the previous study, the PS force was predicted by supervised regression models where the relationship between the EMI feature ...
Thanh-Truong Nguyen +2 more
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Detection of Pin Failure in Carbon Fiber Composites Using the Electro-Mechanical Impedance Method
Sensors, 2020 This paper presents a proof of concept for simultaneous load and structural health monitoring of a hybrid carbon fiber rudder stock sample consisting of carbon fiber composite and metallic parts in order to demonstrate smart sensors in the context of ...
Jochen Moll +5 more
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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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Crack Identification in Necked Double Shear Lugs by Means of the Electro-Mechanical Impedance Method
Sensors, 2020 This contribution investigates fatigue crack detection, localization and quantification in idealized necked double shear lugs using piezoelectric transducers attached to the lug shaft and analyzed by the electro-mechanical impedance (EMI) method.
Markus Winklberger +4 more
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Advances in Mechanical Engineering, 2015 An analytical model on electromechanical coupling coefficient and the length optimization of a bending piezoelectric ultrasonic transducer are proposed. The piezoelectric transducer consists of 8 PZT elements sandwiched between four thin electrodes, and ...
Qiang Zhang, Shengjun Shi, Weishan Chen
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Buildings, 2021 As a key load-bearing element in a prestressed structure, the anchor should be appropriately monitored to secure its as-built prestressing force. In previous studies, the impedance-based prestress force monitoring technique through a mountable lead ...
Thanh-Cao Le +2 more
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