Elastomer Testing: The Risk of Using Uniaxial Data Only for Fitting Mooney-Rivlin Hyperelestic Material Model

Kód výsledku v IS VaVaI

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Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Elastomer Testing: The Risk of Using Uniaxial Data Only for Fitting Mooney-Rivlin Hyperelestic Material Model

Popis výsledku v původním jazyce

Monney-Rivlin constitutive model is often used for characterization of hyper elastic rubber-like materials. To obtain material constants for the model, only a uni-axial tension data set is frequently used. Though it is regularly used for its easiness of getting data though simple practical, the method considered less accurate. To analyze the discrepancy in the method, a detailed examination was done with Monney-Rivlin two parameter model. This paper discusses the variation related to three basic load curves, i.e. uni-axial, equi-biaxial and pure shear. For visual observation of fitted data dispersion, two data fitting cases were considered. First one was with data fitting through only uniaxial data while combination of both uni-axial and pure shear experimental data curve fitting was used in the second case. Detailed one to one comparison of curves was done for accurate estimation of variation. In the later stage of the paper, preliminary investigation was done as to find out a possibility of forecasting equi-biaxial load curve for the available data.

Název v anglickém jazyce

Elastomer Testing: The Risk of Using Uniaxial Data Only for Fitting Mooney-Rivlin Hyperelestic Material Model

Popis výsledku anglicky

Monney-Rivlin constitutive model is often used for characterization of hyper elastic rubber-like materials. To obtain material constants for the model, only a uni-axial tension data set is frequently used. Though it is regularly used for its easiness of getting data though simple practical, the method considered less accurate. To analyze the discrepancy in the method, a detailed examination was done with Monney-Rivlin two parameter model. This paper discusses the variation related to three basic load curves, i.e. uni-axial, equi-biaxial and pure shear. For visual observation of fitted data dispersion, two data fitting cases were considered. First one was with data fitting through only uniaxial data while combination of both uni-axial and pure shear experimental data curve fitting was used in the second case. Detailed one to one comparison of curves was done for accurate estimation of variation. In the later stage of the paper, preliminary investigation was done as to find out a possibility of forecasting equi-biaxial load curve for the available data.

Druh

O - Ostatní výsledky

CEP obor

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OECD FORD obor

20301 - Mechanical engineering

Projekt

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Návaznosti

V - Vyzkumna aktivita podporovana z jinych verejnych zdroju

Rok uplatnění

2017

Kód důvěrnosti údajů

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