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Local approach in mechanical properties prediction
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SYSNO ASEP 0364127 Document Type C - Proceedings Paper (int. conf.) R&D Document Type Conference Paper Title Local approach in mechanical properties prediction Author(s) Brumek, J. (CZ)
Strnadel, B. (CZ)
Dlouhý, Ivo (UFM-A) RID, ORCIDSource Title Metal 2010. 19th International conference on metallurgy and materials - Conference Proceedings. - Ostrava : Tanger s.r.o., 2010 - ISBN 978-80-87294-17-8 Pages s. 490-494 Number of pages 5 s. Action Metal 2010. International Conference on Metallurgy and Materials /19./ Event date 18.05.2010-20.05.2010 VEvent location Rožnov pod Radhoštěm 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 000286658700082 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 ball indentation test was proposed. The time severity for the search for an optimal solution for a non-linear constitutive model is dependent 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 does not require knowledge of the target function. Proposed method was applied to the data from the instrumented indentation technique. 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 2012
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