Numerical modelling and verification of Polish ventricular assist device

• Autorzy: Milenin A. , Kopernik M. , Jurkojć D. , Gawlikowski M. , Rusin T. , Darłak M. , Kustosz R.
• Języki publikacji: EN

Abstrakty

EN

The developed multiscale model of blood chamber of POLVAD (Polish ventricular assist device) was introduced. The tension test for polymer and digital image correlation (DIC) were performed for verification of the strains and displacements obtained in the numerical model of POLVAD_EXT. The numerical simulations were carried out in conditions given in the experiment to compare the results obtained on external surfaces of blood chamber of the POLVAD_EXT. The examined polymer applied in the POLVADs is sensitive to changes of temperature and this observation is considered in all prepared numerical models. The comparison of experimental and numerical results shows acceptable coincidence. There are some heterogeneous distributions of strains in experiment with respect to analysis of computed parameters. The comparison of two versions of blood chambers (POLVAD and POLVAD_EXT) in numerical analysis shows that POLVAD_EXT construction is better with respect to analysis of strain and stress. The maximum values of computed parameters are located in the regions between connectors on the internal surfaces of blood chambers of POLVAD.

Słowa kluczowe

EN

finite element method (FEM); representative volume element (RVE); titanium nitride (TiN); ventricular assist device (VAD); digital image correlation (DIC); polymer

PL

metoda elementów skończonych (MES); azotek tytanu (TiN); urządzenie wspomagania lewej komory serca (VAD); korelacja cyfrowa obrazu (DIC); polimer; czynnik wielkości; RVE

• Wydawca: Oficyna Wydawnicza Politechniki Wrocławskiej
• Czasopismo: Acta of Bioengineering and Biomechanics
• Rocznik: 2012
• Tom: Vol. 14, no. 3
• Strony: 49--57
• Opis fizyczny: Bibliogr. 14 poz., rys., tab.

Twórcy

autor

Milenin A.

autor

Kopernik M.

autor

Jurkojć D.

autor

Gawlikowski M.

autor

Rusin T.

autor

Darłak M.

autor

Kustosz R.

• AGH University of Science and Technology, Kraków

Bibliografia

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