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Use of genetic algorithm for identification of nonlinear constitutive materiál models
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SYSNO ASEP 0358307 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Use of genetic algorithm for identification of nonlinear constitutive materiál models Author(s) Brumek, J. (CZ)
Strnadel, B. (CZ)
Dlouhý, Ivo (UFM-A) RID, ORCIDSource Title Chemické listy. - : Česká společnost chemická - ISSN 0009-2770
Roč. 104, Suppl. S. (2010), s. 299-302Number of pages 4 s. Action Lokální mechanické vlastnosti 2009 Event date 11.11.2009-13.11.2009 VEvent location Telč Country CZ - Czech Republic Event type EUR Language eng - English Country CZ - Czech Republic Keywords instrumented indentation test ; material model ; genetic algorithm Subject RIV JL - Materials Fatigue, Friction Mechanics CEZ AV0Z20410507 - UFM-A (2005-2011) UT WOS 000286413700009 Annotation Indentation technique was focused on the prediction of the strain hardening behaviour of carbide steels. An improved technique to determine the plastic properties of material from the load-displacement curve from a all indentation test was proposed. The time needed for Cindiny an optimal solution for a non-linear constitutive model depends on a number of design variables. Common methods like gradient methods or linear programming can fail due the fact that they drop to the local minimum. The advantage of a genetic algorithm is that it does not require the knowledge of target function. Proposed method was applied to the data from the instrumented indentation technique. The results were found to be in good agreement with the data from conventional standard tests, and in less time. Workplace Institute of Physics of Materials Contact Yvonna Šrámková, sramkova@ipm.cz, Tel.: 532 290 485 Year of Publishing 2011
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