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SUMMARY:Physical Modeling and Computer Simulation of Sclerotic Arteries
DTSTART:20120228T131500
DTSTAMP:20260509T225600Z
UID:cba0c2b79676414dbd1ee7e65f968789d8326ba43da446896fbe71ea
CATEGORIES:Conferences - Seminars
DESCRIPTION:Dr. Gerhard A. Holzapfel\, Graz University of Technology\, Aus
 tria and Royal Institute of Technology\, Stockholm\, Sweden\nSclerotic art
 eries can be considered as heterogeneous structures with materials undergo
 ing large anisotropic deformations. The structural basis is the collagen w
 hich is the ubiquitous load-bearing and reinforcing element in the materia
 l. The organization of collagen fibers\, and the tension within\, maintain
 s the function\, integrity and strength of arteries. The presentation show
 s new experimental results on the collagen fiber orientations and dispersi
 on in human arteries and suggests how to bring this information in a hyper
 elastic model. Thereby\, the importance of considering structural data in 
 a model is highlighted. It is also shown how the individual arterial compo
 nents are assembled to a 3D geometrical model and discretized\, which is t
 hen used for finite element analyses of angioplasty (a technique of mechan
 ically widening a narrowed artery). The computer simulations consider ball
 oon–stent–artery interaction and provide better insights into the rela
 ted changes of the mechanical environment. For example\, the stress distri
 butions in the wall are strongly dependent on the stent design.
LOCATION:ME B3 31
STATUS:CONFIRMED
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