Proper orthogonal decomposition and radial basis functions algorithm for diagnostic procedure based on inverse analysis

Identification procedures based on instrumented indentation and inverse analysis are traditionally coupled with Finite Element Modelling (FEM) to perform simulation of the test. However, this approach is not suitable for in-situ applications since it is rather time consuming due to material and geom...

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Main Author: Buljak Vladimir
Format: Article
Language:English
Published: University of Belgrade - Faculty of Mechanical Engineering, Belgrade 2010-01-01
Series:FME Transactions
Subjects:
Online Access:https://scindeks-clanci.ceon.rs/data/pdf/1451-2092/2010/1451-20921003129B.pdf
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author Buljak Vladimir
author_facet Buljak Vladimir
author_sort Buljak Vladimir
collection DOAJ
description Identification procedures based on instrumented indentation and inverse analysis are traditionally coupled with Finite Element Modelling (FEM) to perform simulation of the test. However, this approach is not suitable for in-situ applications since it is rather time consuming due to material and geometrical nonlinearities required to be taken into account. This paper presents a novel technique for system response prediction based on Proper Orthogonal Decomposition and Radial Basis Functions. The developed technique gives the results of the same accuracy as those computed by FEM in computing times shorter by several orders of magnitude. Presented examples consider two different engineering applications. The first deals with the assessment of material parameters entering into the constitutive models of possibly damaged materials used for industrial plants. The second considers the identification of residual stresses which arise in components after surface treatments.
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spelling doaj.art-88d0b2ec8a404668a808ca0622a027682022-12-21T22:27:57ZengUniversity of Belgrade - Faculty of Mechanical Engineering, BelgradeFME Transactions1451-20922406-128X2010-01-013831291361451-20921003129BProper orthogonal decomposition and radial basis functions algorithm for diagnostic procedure based on inverse analysisBuljak Vladimir0https://orcid.org/0000-0002-0899-7779Politecnico, Milano, ItalijaIdentification procedures based on instrumented indentation and inverse analysis are traditionally coupled with Finite Element Modelling (FEM) to perform simulation of the test. However, this approach is not suitable for in-situ applications since it is rather time consuming due to material and geometrical nonlinearities required to be taken into account. This paper presents a novel technique for system response prediction based on Proper Orthogonal Decomposition and Radial Basis Functions. The developed technique gives the results of the same accuracy as those computed by FEM in computing times shorter by several orders of magnitude. Presented examples consider two different engineering applications. The first deals with the assessment of material parameters entering into the constitutive models of possibly damaged materials used for industrial plants. The second considers the identification of residual stresses which arise in components after surface treatments.https://scindeks-clanci.ceon.rs/data/pdf/1451-2092/2010/1451-20921003129B.pdfinstrumented indentationinverse analysesproper orthogonal decompositionmaterial characterization
spellingShingle Buljak Vladimir
Proper orthogonal decomposition and radial basis functions algorithm for diagnostic procedure based on inverse analysis
FME Transactions
instrumented indentation
inverse analyses
proper orthogonal decomposition
material characterization
title Proper orthogonal decomposition and radial basis functions algorithm for diagnostic procedure based on inverse analysis
title_full Proper orthogonal decomposition and radial basis functions algorithm for diagnostic procedure based on inverse analysis
title_fullStr Proper orthogonal decomposition and radial basis functions algorithm for diagnostic procedure based on inverse analysis
title_full_unstemmed Proper orthogonal decomposition and radial basis functions algorithm for diagnostic procedure based on inverse analysis
title_short Proper orthogonal decomposition and radial basis functions algorithm for diagnostic procedure based on inverse analysis
title_sort proper orthogonal decomposition and radial basis functions algorithm for diagnostic procedure based on inverse analysis
topic instrumented indentation
inverse analyses
proper orthogonal decomposition
material characterization
url https://scindeks-clanci.ceon.rs/data/pdf/1451-2092/2010/1451-20921003129B.pdf
work_keys_str_mv AT buljakvladimir properorthogonaldecompositionandradialbasisfunctionsalgorithmfordiagnosticprocedurebasedoninverseanalysis