Determination of material parameters of a viscoplastic model by genetic algorithm

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dc.authoridDusunceli, Necmi -- 0000-0002-2841-7882
dc.contributor.authorDüşünceli, Necmi
dc.contributor.authorÇolak, Özgen U.
dc.contributor.authorFiliz, Coşkun
dc.date.accessioned13.07.201910:50:10
dc.date.accessioned2019-07-29T19:27:20Z
dc.date.available13.07.201910:50:10
dc.date.available2019-07-29T19:27:20Z
dc.date.issued2010
dc.departmentMühendislik Fakültesi
dc.description.abstractMacroscopic (continuum) and microscopic models, used for simulation of material behaviors under different loading conditions, contain a large number of material parameters and determination of these parameters is an important and difficult issue in the modeling. The aim of this work essentially deals with parameter determination procedure of any viscoplasticity model. In this study, genetic algorithm (GA) parameter optimization procedure has been proposed to determine material parameters of viscoplastic models. Parameter determination capability of the GA optimization method was tested by using VBO model which one of the viscoplasticity theory with no yield surface and loading-unloading conditions. Fourteen material. parameters of VBO model are determined using uniaxial loading-unloading stress strain curves of high density polyethylene (HDPE). Using these material parameters, creep and relaxation behaviors of HDPE are simulated. A good match with experimental results is obtained. Apart from many existing studies in the literature, GA optimization procedure is applied to determine material parameters instead of trial and error procedure. This method can also be used to determine materials parameters of other viscoplasticity theories for all kinds of materials. (C) 2009 Elsevier Ltd. All rights reserved.
dc.description.sponsorshipScientific and Technological Research Council of Turkey (TUBITAK) [104M215]
dc.description.sponsorshipThe support of the Scientific and Technological Research Council of Turkey (TUBITAK) is gratefully acknowledged. The project number: 104M215.
dc.identifier.doi10.1016/j.matdes.2009.09.023
dc.identifier.endpage1255en_US
dc.identifier.issn0261-3069
dc.identifier.issue3en_US
dc.identifier.scopusqualityN/A
dc.identifier.startpage1250en_US
dc.identifier.urihttps://doi.org/10.1016/j.matdes.2009.09.023
dc.identifier.urihttps://hdl.handle.net/20.500.12451/5843
dc.identifier.volume31en_US
dc.identifier.wosWOS:000274203200026
dc.identifier.wosqualityN/A
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherElsevıer Scı Ltd
dc.relation.ispartofMaterıals & Desıgn
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/openAccess
dc.subjectMechanical
dc.subjectParameter Determination
dc.subjectModeling
dc.titleDetermination of material parameters of a viscoplastic model by genetic algorithm
dc.typeArticle

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