Results 161 to 170 of about 3,098 (182)
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Construction and Building Materials, 2019
Abstract The use of piezoelectric materials based Electromechanical Impedance (EMI) technique for monitoring the hydration of cementitious materials has caught much attention recently. However, very few literatures have explored the feasibility of using this method on monitoring the stiffness development and compressive strength gain at the very ...
Yen-Fang Su +4 more
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Abstract The use of piezoelectric materials based Electromechanical Impedance (EMI) technique for monitoring the hydration of cementitious materials has caught much attention recently. However, very few literatures have explored the feasibility of using this method on monitoring the stiffness development and compressive strength gain at the very ...
Yen-Fang Su +4 more
openaire +3 more sources
Smart Materials and Structures, 2023
Abstract Real-time monitoring of soil water content is of great significance to prevent many engineering accidents, such as landslide, water seepage of foundation dam, and reduction of foundation bearing capacity. Electromechanical impedance (EMI) technique based smart aggregates (SAs) have showed excellent monitoring capability in ...
Chengming Lan +4 more
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Abstract Real-time monitoring of soil water content is of great significance to prevent many engineering accidents, such as landslide, water seepage of foundation dam, and reduction of foundation bearing capacity. Electromechanical impedance (EMI) technique based smart aggregates (SAs) have showed excellent monitoring capability in ...
Chengming Lan +4 more
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2021 3rd International Symposium on Signal Processing Systems (SSPS), 2021
The Structural Health Monitoring (SHM) of concrete structures, including fiber concrete structures, receives increasing attention, and the Electromechanical Impedance (EMI)-based method is commonly used. The aim of using fiber reinforced concrete is to maintain the distress in small cracks regarding their width and range.
Maria C. Naoum +3 more
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The Structural Health Monitoring (SHM) of concrete structures, including fiber concrete structures, receives increasing attention, and the Electromechanical Impedance (EMI)-based method is commonly used. The aim of using fiber reinforced concrete is to maintain the distress in small cracks regarding their width and range.
Maria C. Naoum +3 more
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SPIE Proceedings, 2013
This paper discusses theoretical analysis of electro-mechanical impedance spectroscopy (EMIS) of piezoelectric wafer active sensor (PWAS). Both free and constrained PWAS EMIS models are developed for in-plane (lengthwise) and outof plane (thickness wise) mode.
Tuncay Kamas, Bin Lin, Victor Giurgiutiu
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This paper discusses theoretical analysis of electro-mechanical impedance spectroscopy (EMIS) of piezoelectric wafer active sensor (PWAS). Both free and constrained PWAS EMIS models are developed for in-plane (lengthwise) and outof plane (thickness wise) mode.
Tuncay Kamas, Bin Lin, Victor Giurgiutiu
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Smart Materials and Structures, 2014
This paper investigates the effects of the adhesive layer on the admittance of bonded piezoelectric wafer active sensors (PWASs) through mode identification, parametric studies, and experimental verification. Based on the time-frequency analysis of the broadband ultrasound pitch-catch signal, we discovered that the resonances of the PWAS actuator ...
M M Islam, H Huang
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This paper investigates the effects of the adhesive layer on the admittance of bonded piezoelectric wafer active sensors (PWASs) through mode identification, parametric studies, and experimental verification. Based on the time-frequency analysis of the broadband ultrasound pitch-catch signal, we discovered that the resonances of the PWAS actuator ...
M M Islam, H Huang
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Ultrasonics, 2021
Ultrasound based Structural Health Monitoring (SHM) commonly uses surface-bonded piezoelectric wafer active transducers (PWaTs) for ultrasound wave generation and sensing. Both the electromechanical impedance (EMI) of the surface bonded PWaT and the ultrasound pitch-catch signal have been studied extensively for damage detection.
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Ultrasound based Structural Health Monitoring (SHM) commonly uses surface-bonded piezoelectric wafer active transducers (PWaTs) for ultrasound wave generation and sensing. Both the electromechanical impedance (EMI) of the surface bonded PWaT and the ultrasound pitch-catch signal have been studied extensively for damage detection.
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Smart Materials and Structures
Abstract Cracks will inevitably occur in concrete structures or members during the construction process and service life due to aging, environmental factors, external loads, etc. To improve the strength and stability of the cracked concrete structures, many methods have been proposed to repair the cracks.
Chengming Lan +5 more
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Abstract Cracks will inevitably occur in concrete structures or members during the construction process and service life due to aging, environmental factors, external loads, etc. To improve the strength and stability of the cracked concrete structures, many methods have been proposed to repair the cracks.
Chengming Lan +5 more
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Monitoring of 3-D Printing Defects Using the Electromechanical Impedance (EMI) Technique
IEEE Transactions on Instrumentation and MeasurementCristiano Soares Junior +3 more
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