Mechanics of laser cut stent grafts

0443932 - ÚTAM 2016 RIV CZ eng C - Konferenční příspěvek (zahraniční konf.)
Major, Štěpán - Kocour, Vladimír - Hubálovský, Š.
Mechanics of laser cut stent grafts.
Engineering mechanics 2015. 21st International conference, May 11-14, 2015, Svratka, Czech Republic. Extended abstracts. Prague: Institute of theoretical and applied mechanics, Academy of Sciences of the Czech Republic, v. v. i., 2015 - (Náprstek, J.; Fischer, C.), s. 186-187. ISBN 978-80-86246-42-0. ISSN 1805-8248.
[Engineering mechanics 2015 /21./. Svratka (CZ), 11.05.2015-14.05.2015]
Institucionální podpora: RVO:68378297
Klíčová slova: stent-grafts * nitinol * finite element analysis * fatigue * fracture
Kód oboru RIV: JJ - Ostatní materiály

This article is dedicated to a finite element analysis of tubular, laser cut stent grafts with peak-to peak bridge geometry under representative cyclic loading conditions for abdominal aortic aneurysm repair. Cardiovascular diseases are the principal cause of death in the developed world. For computational analysis, ANSYS software was employed to study the mechanical behavior of stents. Contrary to conventional engineering materials, nitinol stent fracture is not stress based but strain based. The effects of crimpling and cyclic pressure loading on stent–graft fatigue life were simulated and analyzed.
Trvalý link: http://hdl.handle.net/11104/0246834