Title :
Theoretical Study of Dynamic Viscoelastic Behaviour of Aorta under Impulsive Internal Pressure
Author :
Rastgar-Agah, Mobin ; Darvish, K.
Author_Institution :
Dept. of Mech. Eng., Temple Univ., Philadelphia, PA, USA
Abstract :
Sudden increase in intraluminal pressure is one of the contributing factor in traumatic aortic rupture (TAR) in car crashes. At higher loading rates the response of the vessel may alter significantly due to viscoelasticity and inertia of the tissue. The goal of this study was to theoretically evaluate the significance of these factors in determining the state of stress and strain in aortic wall under high rate pressurization.
Keywords :
biomechanics; blood vessels; cardiology; fracture; injuries; stress-strain relations; viscoelasticity; aorta dynamic viscoelastic behaviour; aortic wall strain state; aortic wall stress state; car crash; impulsive internal pressurization; intraluminal pressurization; tissue inertia; tissue viscoelasticity; traumatic aortic rupture; vessel response; Accidents; Loading; Mathematical model; Physiology; Strain; Tensile stress; dynamic loading; inertia effect; traumatic aortic rupture; viscoelasticity;
Conference_Titel :
Bioengineering Conference (NEBEC), 2013 39th Annual Northeast
Conference_Location :
Syracuse, NY
Print_ISBN :
978-1-4673-4928-4
DOI :
10.1109/NEBEC.2013.32
