Multi-objective optimization of nanoindentation model parameters

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F08%3A01145772" target="_blank" >RIV/68407700:21110/08:01145772 - isvavai.cz</a>

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Multi-objective optimization of nanoindentation model parameters

Original language description

Optimization of material parameters from a finite element nanoindentation model is discussed in this paper. An experimental method called nanoindentation allows testing physical properties of heterogeneous material in the scale of their components. Thistesting is very expensive therefore it is effective to use numerical models. The target of the optimization is to find input material parameters for the model to achieve the best agreement between the numerical response and the experiment. For that, a forward mode of the inverse analysis was applied. As an optimization algorithm, the multi-objective evolutionary algorithm PAES was used. Objective functions are based on a difference between an optimized curve and a result from the model. Results of the method are presented on a set of illustrative problems created by computer-generated data. From the point of view of efficiency and accuracy, the proposed methodology provides a promising alternative to the existing approaches.

Czech name

Vícekriteriální optimalizace parametrů modelu nanoindentace

Czech description

V článku je diskutována optimalizace materiálových parametrů modelu nanoindentace. Reálné nanoindentační experimenty jsou finančně náročné, proto se používají numerické modely. ílem optimalizace je nalézt parametry tak, aby byl výstup modelu shodný s experimentálními daty. K optimalizace je použit vícekriteriální evoluční algoritmus PAES. Použitá metodologie vykazuje uspokojivé výsledky jak při verifikaci tak i při validaci.

Type

D - Article in proceedings

CEP classification

JD - Use of computers, robotics and its application

OECD FORD branch

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Project

<a href="/en/project/FT-TA4%2F100" target="_blank" >FT-TA4/100: Optimization as a tool of sustainability and competitiveness of Czech construction industry.</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2008

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection

Proceedings of the BuHu 8th International Postgraduate Research Conference 2008 - Part II

ISBN

978-80-01-04093-5

ISSN

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e-ISSN

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Number of pages

8

Pages from-to

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Publisher name

CTU Publishing House

Place of publication

Praha

Event location

Praha

Event date

Jun 26, 2008

Type of event by nationality

EUR - Evropská akce

UT code for WoS article

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