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Stress-driven collagen fiber remodeling in arterial walls
KTH, Skolan för teknikvetenskap (SCI), Hållfasthetslära (Inst.).
KTH, Skolan för teknikvetenskap (SCI), Hållfasthetslära (Inst.), Biomekanik.
2007 (engelsk)Inngår i: Biomechanics and Modeling in Mechanobiology, ISSN 1617-7959, E-ISSN 1617-7940, Vol. 6, nr 3, s. 163-175Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

A stress-driven model for the relation between the collagen morphology and the loading conditions in arterial walls is proposed. We assume that the two families of collagen fibers in arterial walls are aligned along preferred directions, located between the directions of the two maximal principal stresses. For the determination of these directions an iterative finite element based procedure is developed. As an example the remodeling of a section of a human common carotid artery is simulated. We find that the predicted fiber morphology correlates well with experimental observations. Interesting outcomes of the model including local shear minimization and the possibility of axial compressions due to high blood pressure are revealed and discussed.

sted, utgiver, år, opplag, sider
2007. Vol. 6, nr 3, s. 163-175
Emneord [en]
arterial wall, collagen fibers, finiten element method, mechanical stress, remodeling, soft biological tissue, finite-element implementation, reinforced composites, biological tissues, constitutive model, structural model, modulated growth, elasticity, adaptation, atherosclerosis, hypertension
Identifikatorer
URN: urn:nbn:se:kth:diva-16575DOI: 10.1007/s10237-006-0049-7ISI: 000245885300003Scopus ID: 2-s2.0-33947408793OAI: oai:DiVA.org:kth-16575DiVA, id: diva2:334617
Merknad
QC 20100525Tilgjengelig fra: 2010-08-05 Laget: 2010-08-05 Sist oppdatert: 2017-12-12bibliografisk kontrollert

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Gasser, T. ChristianHolzapfel, Gerhard A.
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