Ex vivo and in silico study of human Common Carotid Arteries pressure response in physiological and inverted state

• Autorzy: Piechna A. , Cieślicki K. , Lombarski L. , Ciszek B.

Identyfikatory

DOI

10.1515/ijame-2015-0015

• Języki publikacji: EN

Abstrakty

EN

Arterial walls are a multilayer structures with nonlinear material characteristics. Furthermore, residua stresses exist in unloaded state (zero-pressure condition) and they affect arterial behavior. To investigate these phenomena a number of theoretical and numerical studies were performed, however no experimental validation was proposed and realized yet. We cannot get rid of residual stresses without damaging the arterial segment. In this paper we propose a novel experiment to validate a numerical model of artery with residual stresses. The inspiration for our study originates from experiments made by Dobrin on dogs’ arteries (1999). We applied the idea of turning the artery inside out. After such an operation the sequence of layer is reversed and the residual stresses are re-ordered. We performed several pressure-inflation tests on human Common Carotid Arteries (CCA) in normal and inverted configurations. The nonlinear responses of arterial behavior were obtained and compared to the numerical model. Computer simulations were carried out using the commercial software which applied the finite element method (FEM). Then, these results were discussed.

Słowa kluczowe

EN

artery mechanics; residual stress; pressure-inflation test; common carotid artery

PL

tętnica szyjna; metoda elementów skończonych; symulacja komputerowa

• Wydawca: Oficyna Wydawnicza Uniwersytetu Zielonogórskiego
• Czasopismo: International Journal of Applied Mechanics and Engineering
• Rocznik: 2015
• Tom: Vol. 20, no. 1
• Strony: 209--214
• Opis fizyczny: Bibliogr. 15 poz., rys., wykr.

Twórcy

autor

Piechna A.

• Institute of Automatic Control and Robotics Warsaw University of Technology ul. św. A. Boboli 8 02-525 Warszawa, POLAND

autor

Cieślicki K.

• Institute of Automatic Control and Robotics Warsaw University of Technology ul. św. A. Boboli 8 02-525 Warszawa, POLAND

autor

Lombarski L.

• Department of Descriptive and Clinical Anatomy Warsaw Medical University Chałubińskiego 5 Warszawa 02-004, POLAND

autor

Ciszek B.

• Department of Descriptive and Clinical Anatomy Warsaw Medical University Chałubińskiego 5 Warszawa 02-004, POLAND

Bibliografia

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