Modifikace modelu AbdelKarim Ohno pro simulaci ratchetingu

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27230%2F08%3A00018270" target="_blank" >RIV/61989100:27230/08:00018270 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

A Modification of AbdelKarim-Ohno Model for Fatcheting Simulations

Popis výsledku v původním jazyce

When materials are subjected to cyclic plastic loading with nonzero mean stress, strain usually accumulates in the direction of mean stress with an increasing number of cycles. This kind of strain accumulation is called cyclic creep or ratcheting. The phenomenon strongly depends on many factors and its accurate numerical medelling is problematic, expecially under nonproportional loading. Two modifications of AbdelKarim Ohno cyclic plasticity model were proposed for better ratchenting simulation. The developed model was implemented into the commericial FE software ANSYS using a radial return method. In this paper, hte model capability is verified on a set of axial/rotational loading path taken form Chen et al. The model predicts ratcheting strain reasonably well for almost all test cases.

Název v anglickém jazyce

A Modification of AbdelKarim-Ohno Model for Fatcheting Simulations

Popis výsledku anglicky

When materials are subjected to cyclic plastic loading with nonzero mean stress, strain usually accumulates in the direction of mean stress with an increasing number of cycles. This kind of strain accumulation is called cyclic creep or ratcheting. The phenomenon strongly depends on many factors and its accurate numerical medelling is problematic, expecially under nonproportional loading. Two modifications of AbdelKarim Ohno cyclic plasticity model were proposed for better ratchenting simulation. The developed model was implemented into the commericial FE software ANSYS using a radial return method. In this paper, hte model capability is verified on a set of axial/rotational loading path taken form Chen et al. The model predicts ratcheting strain reasonably well for almost all test cases.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

JL - Únava materiálu a lomová mechanika

OECD FORD obor

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Projekt

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Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2008

Kód důvěrnosti údajů

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

Název periodika

Technical Gazette

ISSN

1330-3651

e-ISSN

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Svazek periodika

15

Číslo periodika v rámci svazku

3

Stát vydavatele periodika

HR - Chorvatská republika

Počet stran výsledku

7

Strana od-do

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Kód UT WoS článku

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EID výsledku v databázi Scopus

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