Search results for "Material parameter identification"

showing 3 items of 3 documents

NOVEL TOOLS FOR THE MECHANICAL ANALYSIS OF THIN PLATES AND RELEVANCE ON MEMBRANE-BASED TECHNOLOGIES

2020

Ion Exchange MembraneSettore ING-IND/26 - Teoria Dello Sviluppo Dei Processi ChimiciProfiled MembraneFluid-Structure InteractionThin PlateMembraneMembrane DeformationReverse ElectrodialysiElectrodialysiMeshfree methodLine Element-Less MethodMaterial parameter identificationFluid redistribution.Settore ICAR/08 - Scienza Delle Costruzioni
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Analysis of Rectangular Orthotropic Membranes for Mechanical Properties Identification through Load-Displacement Data

2021

In this paper, an innovative procedure is introduced for the identification of the mechanical properties of orthotropic membranes based on load-displacement data. To this end, novel functional forms of the displacement components for rectangular membranes are appropriately introduced. Unknown coefficients of these displacement functions are determined, minimizing the total potential energy of the membrane. The energy method is then combined with an optimization procedure to estimate the elastic constants of the membranes in a straightforward manner. Specifically, a genetic algorithm is used to minimize a properly defined objective function directly related to the sought mechanical propertie…

Materials sciencebusiness.industryMechanical Engineering02 engineering and technologyStructural engineering021001 nanoscience & nanotechnologyOrthotropic materialBulge test Genetic algorithm Material parameter identification Membrane Orthotropic material Static responseIdentification (information)020303 mechanical engineering & transportsMembrane0203 mechanical engineeringMechanics of MaterialsBulge testGenetic algorithmStatic responseLoad displacement0210 nano-technologybusinessSettore ICAR/08 - Scienza Delle Costruzioni
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Vibration-based identification of mechanical properties of orthotropic arbitrarily shaped plates: Numerical and experimental assessment

2018

Abstract An innovative procedure is introduced for the identification of the mechanical parameters of orthotropic plates of arbitrary shape, under various boundary conditions, based on vibration data. The method employs a combination of a convenient Rayleigh-Ritz approach and Particle-Swarm Optimization to estimate elastic constants of the orthotropic material in a straightforward manner, without requiring computationally demanding iterative Finite Element analyses. Specifically, the pb-2 Rayleigh-Ritz procedure is extended and applied to deal with orthotropic plates, simplifying the approach to more easily treat generic plate shapes, taking advantage of the Green's theorem. The method is t…

Settore ING-IND/26 - Teoria Dello Sviluppo Dei Processi ChimiciMaterials sciencePb-2 Rayleigh-Ritz approachContext (language use)Ceramics and Composite02 engineering and technologyOrthotropic materialIndustrial and Manufacturing Engineering0203 mechanical engineeringVibration testMaterial parameter identificationMechanics of MaterialBoundary value problemParticle-swarm optimizationComposite materialReliability (statistics)business.industryExperimental analysiMechanical EngineeringParticle swarm optimizationExperimental dataStructural engineering021001 nanoscience & nanotechnologyFinite element methodVibration020303 mechanical engineering & transportsMechanics of MaterialsCeramics and Composites0210 nano-technologybusinessSettore ICAR/08 - Scienza Delle Costruzioni
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