NON-LINEAR REGRESSION APPLICATION IN IDENTIFICATION OF HYPERELASTIC CONSTITUTIVE MODELS OF SOFT TISSUES

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26210%2F03%3APU41533" target="_blank" >RIV/00216305:26210/03:PU41533 - 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

NON-LINEAR REGRESSION APPLICATION IN IDENTIFICATION OF HYPERELASTIC CONSTITUTIVE MODELS OF SOFT TISSUES

Original language description

Choice of a convenient constitutive model for computational modelling of soft tissues is an important assumption of model reliability. The optimal shape of constitutive equations depends not only on the type of material behaviour (isotropic or orthotropic, elastic or viscoelatic, etc.) but on the deformation range to be described as well. For example in blood vessel walls, there are mostly 2D or 3D stress states. If a hyperelastic constitutive model is based (because of a lack of experimental data) on uuniaxial tension tests only, the results for biaxial stress states can be quite false, because of transversal strains differing from the test. Methods of regression, which are able to improve the model behaviour, and comparison of predictive capability of models are presented in the paper.

Czech name

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Czech description

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Type

D - Article in proceedings

CEP classification

BO - Biophysics

OECD FORD branch

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Project

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Continuities

Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year

2003

Confidentiality

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

Article name in the collection

Engineering Mechanics 2003

ISBN

80-86246-18-3

ISSN

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e-ISSN

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Number of pages

2

Pages from-to

360

Publisher name

Association for Engineering Mechanics

Place of publication

Svratka, CZ

Event location

Svratka

Event date

May 12, 2003

Type of event by nationality

CST - Celostátní akce

UT code for WoS article

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