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Material Modeling Of The Damage Behavior Of Arterial Tissues
KTH, School of Engineering Sciences (SCI), Solid Mechanics (Dept.).
2013 (English)In: Biomedizinische Technik (Berlin. Zeitschrift), ISSN 0013-5585, Vol. 58, no (Suppl. 1)Article in journal (Refereed) Published
Abstract [en]

In this contribution we present a damage model for collagenous soft tissues such as arterial walls, which takes into account the statistical distributions of microscopic parameters. This approach extends the constitutive framework proposed in [1] by specific damage functions arising from microscopical considerations. In detail, statistical distributions of proteoglycan (PG) orientations, fibril length parameters and ultimate proteoglycan stretch can be considered, cf. [2]. The influence of each distributed quantity on the damage behavior is investigated by adjusting the model to uniaxial experimental data of a human carotid artery. Furthermore, the proposed model is implemented into a finite element framework and used within a numerical example in order to show its applicability to inhomogeneous boundary-value problems.

Place, publisher, year, edition, pages
2013. Vol. 58, no (Suppl. 1)
Keyword [en]
Arterial wall mechanics, damage mechanics, material theory, finite element method
National Category
Biomedical Laboratory Science/Technology
URN: urn:nbn:se:kth:diva-141983DOI: 10.1515/bmt-2013-4110ISI: 000329463600110OAI: diva2:699261
Tri-State Conference of the German-Swiss-and-Austrian-Society-for-Biomedical-Technology (BMT), 2013, Graz, Austria

QC 20140227

Available from: 2014-02-27 Created: 2014-02-27 Last updated: 2014-02-27Bibliographically approved

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Holzapfel, Gerhard A.
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Solid Mechanics (Dept.)
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