Constitutive modelling of an arterial wall supported by microscopic measurements
An idealized model of an arterial wall is proposed as a two-layer system. Distinct mechanical response of each layer is taken into account considering two types of strain energy functions in the hyperelasticity framework. The outer layer, considered as a fibre-reinforced composite, is modelled using...
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University of West Bohemia
2012-06-01
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Online Access: | http://www.kme.zcu.cz/acm/index.php/acm/article/view/167/163 |
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doaj-02d2433851964e4a9a4ea6fa317c81bc2021-09-02T04:34:18ZengUniversity of West BohemiaApplied and Computational Mechanics1802-680X2012-06-0161107118Constitutive modelling of an arterial wall supported by microscopic measurementsVychytil J.Kochová P.Tonar Z.Kuncová J.Švíglerová J.An idealized model of an arterial wall is proposed as a two-layer system. Distinct mechanical response of each layer is taken into account considering two types of strain energy functions in the hyperelasticity framework. The outer layer, considered as a fibre-reinforced composite, is modelled using the structural model of Holzapfel. The inner layer, on the other hand, is represented by a two-scale model mimicing smooth muscle tissue. For this model, material parameters such as shape, volume fraction and orientation of smooth muscle cells are determined using the microscopic measurements. The resulting model of an arterial ring is stretched axially and loaded with inner pressure to simulate the mechanical response of a porcine arterial segment during inflation and axial stretching. Good agreement of the model prediction with experimental data is promising for further progress.http://www.kme.zcu.cz/acm/index.php/acm/article/view/167/163Arterial wallHyperelasticityMulti-scale modellingStereology |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Vychytil J. Kochová P. Tonar Z. Kuncová J. Švíglerová J. |
spellingShingle |
Vychytil J. Kochová P. Tonar Z. Kuncová J. Švíglerová J. Constitutive modelling of an arterial wall supported by microscopic measurements Applied and Computational Mechanics Arterial wall Hyperelasticity Multi-scale modelling Stereology |
author_facet |
Vychytil J. Kochová P. Tonar Z. Kuncová J. Švíglerová J. |
author_sort |
Vychytil J. |
title |
Constitutive modelling of an arterial wall supported by microscopic measurements |
title_short |
Constitutive modelling of an arterial wall supported by microscopic measurements |
title_full |
Constitutive modelling of an arterial wall supported by microscopic measurements |
title_fullStr |
Constitutive modelling of an arterial wall supported by microscopic measurements |
title_full_unstemmed |
Constitutive modelling of an arterial wall supported by microscopic measurements |
title_sort |
constitutive modelling of an arterial wall supported by microscopic measurements |
publisher |
University of West Bohemia |
series |
Applied and Computational Mechanics |
issn |
1802-680X |
publishDate |
2012-06-01 |
description |
An idealized model of an arterial wall is proposed as a two-layer system. Distinct mechanical response of each layer is taken into account considering two types of strain energy functions in the hyperelasticity framework. The outer layer, considered as a fibre-reinforced composite, is modelled using the structural model of Holzapfel. The inner layer, on the other hand, is represented by a two-scale model mimicing smooth muscle tissue. For this model, material parameters such as shape, volume fraction and orientation of smooth muscle cells are determined using the microscopic measurements. The resulting model of an arterial ring is stretched axially and loaded with inner pressure to simulate the mechanical response of a porcine arterial segment during inflation and axial stretching. Good agreement of the model prediction with experimental data is promising for further progress. |
topic |
Arterial wall Hyperelasticity Multi-scale modelling Stereology |
url |
http://www.kme.zcu.cz/acm/index.php/acm/article/view/167/163 |
work_keys_str_mv |
AT vychytilj constitutivemodellingofanarterialwallsupportedbymicroscopicmeasurements AT kochovap constitutivemodellingofanarterialwallsupportedbymicroscopicmeasurements AT tonarz constitutivemodellingofanarterialwallsupportedbymicroscopicmeasurements AT kuncovaj constitutivemodellingofanarterialwallsupportedbymicroscopicmeasurements AT sviglerovaj constitutivemodellingofanarterialwallsupportedbymicroscopicmeasurements |
_version_ |
1721180012732743680 |