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Erschienen in: Computational Mechanics 5/2016

01.05.2016 | Original Paper

On the accuracy of numerical integration over the unit sphere applied to full network models

verfasst von: Mikhail Itskov

Erschienen in: Computational Mechanics | Ausgabe 5/2016

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Abstract

This paper is motivated by a recent study by Verron (Mecha Mater 89:216–228, 2015) which revealed huge errors of the numerical integration over the unit sphere in application to large strain problems. For the verification of numerical integration schemes we apply here other analytical integrals over the unit sphere which demonstrate much more accurate results. Relative errors of these integrals with respect to corresponding analytical solutions are evaluated also for a full network model of rubber elasticity based on a Padé approximation of the inverse Langevin function as the chain force. According to the results of our study, the numerical integration over the unit sphere can still be considered as a reliable and accurate tool for full network models.

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Metadaten
Titel
On the accuracy of numerical integration over the unit sphere applied to full network models
verfasst von
Mikhail Itskov
Publikationsdatum
01.05.2016
Verlag
Springer Berlin Heidelberg
Erschienen in
Computational Mechanics / Ausgabe 5/2016
Print ISSN: 0178-7675
Elektronische ISSN: 1432-0924
DOI
https://doi.org/10.1007/s00466-016-1265-3

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