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RESEARCH PRODUCT
A boundary element model for structural health monitoring using piezoelectric transducers
Ivano BenedettiFangxin ZouM.h. Aliabadisubject
EngineeringLaplace transformbusiness.industryAcousticsInverse Laplace transformStructural engineeringCondensed Matter PhysicsBoundary knot methodPiezoelectricityAtomic and Molecular Physics and OpticsFinite element methodboundary element method smart structure piezoelectric transducer structural health monitoring crack detection wave propagationMechanics of MaterialsSignal ProcessingGeneral Materials ScienceStructural health monitoringElectrical and Electronic EngineeringbusinessActuatorSettore ING-IND/04 - Costruzioni E Strutture AerospazialiBoundary element methodCivil and Structural Engineeringdescription
In this paper, for the first time, the boundary element method (BEM) is used for modelling smart structures instrumented with piezoelectric actuators and sensors. The host structure and its cracks are formulated with the 3D dual boundary element method (DBEM), and the modelling of the piezoelectric transducers implements a 3D semi-analytical finite element approach. The elastodynamic analysis of the structure is performed in the Laplace domain and the time history is obtained by inverse Laplace transform. The sensor signals obtained from BEM simulations show excellent agreement with those from finite element modelling simulations and experiments. This work provides an alternative methodology for modelling smart structures in structural health monitoring applications.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2013-12-10 |