Effect of Deformation Rate on the Mechanical Properties of Arteries

Download
  1. (PDF, 2 MB)
  2. Get@NRC: Effect of Deformation Rate on the Mechanical Properties of Arteries (Opens in a new window)
DOIResolve DOI: http://doi.org/10.4236/jbise.2010.32018
AuthorSearch for: ; Search for: ; Search for: ; Search for: ; Search for:
TypeArticle
Journal titleJournal of Biomedical Science and Engineering
Volume3
Issue2
Pages124137; # of pages: 14
SubjectMechanical Properties; Artery; Uniaxial&Biaxial Testing; Deformation Rate; Viscoelasticity; Constitutive Model
AbstractPig aorta samples were tested uniaxially and equi- biaxially at deformation rates from 10 to 200 %/s. Under uniaxial and biaxial testing, loading forces were reduced up to 20% when the deformation rate was increased from 10 to 200 %/s, which is the opp- osite to the behaviour seen in other biological tissues. A rate-dependent isotropic hyperelastic constitutive equation, derived from the Mooney-Rivlin model, was fitted to the experimental results (e.g. aorta specimens) using an inverse finite element technique. In the proposed model, one of the material par- ameters is a linear function of the deformation rate. The inverse relationship between stiffness and defo- rmation rate raises doubts on the hypothesized rel- ationship between intramural stress, arterial injury, and restenosis.
Publication date
LanguageEnglish
AffiliationNRC Industrial Materials Institute; National Research Council Canada
Peer reviewedYes
NRC number50205
NPARC number16696463
Export citationExport as RIS
Report a correctionReport a correction
Record identifier155cc324-aa3f-42d0-ba0d-2d8883edefdc
Record created2011-01-27
Record modified2016-05-09
Bookmark and share
  • Share this page with Facebook (Opens in a new window)
  • Share this page with Twitter (Opens in a new window)
  • Share this page with Google+ (Opens in a new window)
  • Share this page with Delicious (Opens in a new window)