Title :
Multilayer properties of aorta
Author :
Parenti, C. ; Laksari, K. ; Shafieian, M. ; Darvish, K.
Author_Institution :
Temple Univ., Philadelphia, PA
Abstract :
Current finite element models of the aorta assume a homogenous material, but in fact aorta is composed of three major layers. Understanding of the material properties of these layers is essential in order to study the local mechanism of dynamic rupture. The material properties of aorta wall layers were determined from microindentation tests. The results showed significant linear increase of the shear modulus in the inner half of media. A dominant viscoelastic behavior was observed which was almost uniform throughout the layers.
Keywords :
biomechanics; blood vessels; finite element analysis; indentation; shear strength; viscoelasticity; aorta multilayer property; aorta wall layer; dominant viscoelastic behavior; dynamic rupture local mechanism; homogenous material; microindentation test; shear modulus; Conducting materials; Elasticity; Finite element methods; Force measurement; History; Material properties; Materials testing; Nonhomogeneous media; Vehicle dynamics; Viscosity;
Conference_Titel :
Bioengineering Conference, 2009 IEEE 35th Annual Northeast
Conference_Location :
Boston, MA
Print_ISBN :
978-1-4244-4362-8
Electronic_ISBN :
978-1-4244-4364-2
DOI :
10.1109/NEBC.2009.4967638
