In vivo parameter identification in arteries including smooth muscle contraction
(English)Manuscript (preprint) (Other academic)
This paper presents an approach for including the active properties and a general residual stress distribution in the mechanical modelling of arteries by using a constrained mixture theory and local tangent maps. The model is used to identify passive and active properties, and a general residual stress distribution from in vivo measurements on a human femoral artery by solving a minimization problem. The results show that the active stress developed in the vascular smooth muscles tends to make the transmural stretch and stress distribution more uniform then for the passive response. We believe this indicates that it is important to account for active properties when modelling muscular arteries.
Engineering and Technology
IdentifiersURN: urn:nbn:se:liu:diva-85898OAI: oai:DiVA.org:liu-85898DiVA: diva2:573653