Results 41 to 50 of about 4,777 (211)

Monitoring concept for structural integration of PZT-fiber arrays in metal sheets: a numerical and experimental study

open access: yesInternational Journal of Smart and Nano Materials, 2018
The technique joining by forming allows the structural integration of piezoceramic fibers into locally microstructured metal sheets without any elastic interlayers.
Welf-Guntram Drossel   +8 more
doaj   +1 more source

Discussion on `Characterization of 1-3 piezoelectric polymer composites - a numerical and analytical evaluation procedure for thickness mode vibrations' by C.V. Madhusudhana Rao, G. Prasad, Condens. Matter Phys., 2010, Vol.13, No.1, 13703 [PDF]

open access: yes, 2014
In the paper entitled "Characterization of 1-3 piezoelectric polymer composites - a numerical and analytical evaluation procedure for thickness mode vibrations", the dependence of the thickness electromechanical coupling coefficient on the aspect ratio ...
Li, Z., Sun, Y.
core   +2 more sources

Mathematical Modeling of Piezoelectric Ceramic Ring Transducers for Functional Instrumentation

open access: yesVìsnik Nacìonalʹnogo Tehnìčnogo Unìversitetu Ukraïni Kììvsʹkij Polìtehnìčnij Ìnstitut: Serìâ Radìotehnìka, Radìoaparatobuduvannâ, 2023
The article reviews a mathematical model of piezoelectric ceramic ring transducers which are functional, highly effective, and applicable as components of functional instrumentation devices, such as sensors, automatic control devices, measuring devices,
C. V. Bazilo   +4 more
doaj   +1 more source

Water presence detection in a concrete crack using smart aggregates

open access: yesInternational Journal of Smart and Nano Materials, 2015
Liquid migrating into existing concrete cracks is a serious problem for the reliability of concrete structures and can sometimes induce full concrete structural failures.
Qingzhao Kong, Qian Feng, Gangbing Song
doaj   +1 more source

Analysis of elastic nonlinearity for impact damage detection in composite laminates [PDF]

open access: yes, 2015
This paper concerns the experimental analysis of nonlinear response features of a composite laminate plate for impact damage detection. The measurement procedure is based on the Scaling Subtraction Method (SSM) and consists in exciting the damaged ...
Aymerich, F.   +4 more
core   +1 more source

Feasibility Study of Steel Bar Corrosion Monitoring Using a Piezoceramic Transducer Enabled Time Reversal Method

open access: yesApplied Sciences, 2018
Steel bars, which are commonly used as reinforcements in concrete structures, are slender rods and are good conduits for stress wave propagation. In this paper, a lead zirconate titanate (PZT)-based steel bar corrosion monitoring approach was proposed ...
Linsheng Huo   +3 more
doaj   +1 more source

Lead‐free versus PZT: Acoustic characterization of ultrasonic immersion transducers fabricated with lead‐free NBT‐BT piezoceramic

open access: yesThe Journal of Engineering, 2023
An evaluation of the performance of a recently developed formulation of (lead‐free) Sodium‐Bismuth titanate – Barium Titanate (NBT‐BT) piezoceramic is presented through the construction and testing of several immersion transducers based around a new ...
Thomas R. P. Kelley
doaj   +1 more source

Metal rings and discs Matlab/Simulink 3D model for ultrasonic sandwich transducer design [PDF]

open access: yes, 2012
Metal-endings are integral part of different ultrasonic sandwich transducers. In this paper a new Matlab/Simulink 3D model of the finite metal rings and discs of various dimensions is realized.
Jovanović I.   +4 more
core   +1 more source

Microstructured Electrode‐Piezopolymer Interface for Ultrasound Transducers With Enhanced Flexibility and Acoustic Performance

open access: yesAdvanced Materials Technologies, EarlyView.
Flexible piezopolymer ultrasound transducers are engineered by tailoring the electrode–piezopolymer interface using metallic, flake‐based, and porous graphene electrodes. Laser‐induced graphene's porous structure enables polymer infiltration, strengthening interfacial coupling and enhancing piezoelectric response and acoustic output.
Spencer Hagen   +3 more
wiley   +1 more source

Equivalent Circuit to Analyze the Transmitting Characteristics of a Cymbal Array

open access: yesSensors, 2022
A cymbal transducer has a simple structure consisting of a piezoceramic disk and metallic caps and has broadband characteristics when built as an array.
Hayeong Shim   +3 more
doaj   +1 more source

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