Results 31 to 40 of about 438 (134)
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
doaj +1 more source
Sensors, 2023 This work proposed a novel approach based on principal component analyses (PCAs) to monitor the very early-age hydration of self-compacting concrete (SCC) with varying replacement ratios of fly ash (FA) to cement at 0%, 15%, 30%, 45%, and 60 ...
Qunfeng Liu +4 more
doaj +1 more source
Sensors, 2016 In the electromechanical impedance (EMI) method, the PZT patch performs the functions of both sensor and exciter. Due to the high frequency actuation and non-model based characteristics, the EMI method can be utilized to detect incipient structural ...
Dansheng Wang +3 more
doaj +1 more source
New Advances in Space SHM Project [PDF]
INCAS Bulletin, 2015 This paper is based on a consistent family of experimental data obtained in a national research project. More accurate, specimens representing spacecraft structures, accomplished from aluminum circular plates with PWAS bonded on them were subjected to ...
Adrian TOADER, Ioan URSU, Daniela ENCIU
doaj +1 more source
A Study of Concrete Slab Damage Detection Based on the Electromechanical Impedance Method
Sensors, 2014 Piezoelectric lead zirconate titanate (PZT) is being gradually applied into practice as a new intelligent material for structural health monitoring. In order to study the damage detection properties of PZT on concrete slabs, simply supported reinforced ...
Xianyan Hu, Hongping Zhu, Dansheng Wang
doaj +1 more source
Sensors, 2020 This paper proposes a novel structural damage quantification approach using a sparse regularization based electromechanical impedance (EMI) technique. Minor structural damage in plate structures by using the measurement of only a single surface bonded ...
Xingyu Fan, Jun Li
doaj +1 more source
Advanced Materials, EarlyView.Mechanically origami‐coded 3D kirigami photovoltaics convert a single extension–release cycle into deterministic self‐folding, reconfiguring planar solar cells into programmable 3D modules. Distinct coding strategies enable either ultrahigh stretchability (500% system strain) or ultrahigh initial effective areal coverage (225%).
Seok Joon Hwang +15 more
wiley +1 more source
IEEE Sensors JournalIn this article, we propose a new multimodal sensing approach in which electromechanical impedance (EMI) signatures are used to sense temperature in addition to structural health monitoring (SHM) for which the technique is commonly used. Here, we use machine learning to estimate temperature differences between signatures, enabling the EMI sensor to ...
Mads Kofod Dahl +3 more
openaire +1 more source
Micromachines, 2019 Detecting the depth and size of debonding in composite structures is essential for assessing structural safety as it can weaken the structure possibly leading to a failure.
Wongi S. Na, Jongdae Baek
doaj +1 more source
Advanced Intelligent Systems, EarlyView.A data‐efficient artificial intelligence‐assisted framework, which integrates experimental data with machine learning, is developed for the design of bimodal networked dielectric elastomers (DEs) as advanced artificial muscles. It adopts neural networks to predict DEs’ mechanical properties and support vector machines to classify electromechanical ...
Ofoq Normahmedov +8 more
wiley +1 more source