ETDs @PUC-Rio
| Título: | MECHANICAL BEHAVIOR AND STABILITY OF THE INTERNAL MEMBRANE OF THE INCOR VENTRICULAR ASSIT DEVICE | ||||||||||||||||
| Autor: |
PEDRO BARONI DA COSTA TEIXEIRA |
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| Colaborador(es): |
DJENANE CORDEIRO PAMPLONA - Orientador PAULO BATISTA GONCALVES - Orientador |
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| Catalogação: | 01/OUT/2001 | Língua(s): | PORTUGUESE - BRAZIL |
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| Tipo: | TEXT | Subtipo: | THESIS | ||||||||||||||
| Notas: |
[pt] Todos os dados constantes dos documentos são de inteira responsabilidade de seus autores. Os dados utilizados nas descrições dos documentos estão em conformidade com os sistemas da administração da PUC-Rio. [en] All data contained in the documents are the sole responsibility of the authors. The data used in the descriptions of the documents are in conformity with the systems of the administration of PUC-Rio. |
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| Referência(s): |
[pt] https://www.maxwell.vrac.puc-rio.br/projetosEspeciais/ETDs/consultas/conteudo.php?strSecao=resultado&nrSeq=1984&idi=1 [en] https://www.maxwell.vrac.puc-rio.br/projetosEspeciais/ETDs/consultas/conteudo.php?strSecao=resultado&nrSeq=1984&idi=2 [es] https://www.maxwell.vrac.puc-rio.br/projetosEspeciais/ETDs/consultas/conteudo.php?strSecao=resultado&nrSeq=1984&idi=4 |
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| DOI: | https://doi.org/10.17771/PUCRio.acad.1984 | ||||||||||||||||
| Resumo: | |||||||||||||||||
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The aim of this dissertation is to characterize and
analyse the mechanical behavior of the internal membrane of
the (Brazilian) Heart Institute's Ventricular Assist Device,
VAD-InCor, through application of the knowledge and tools of
structural engineeering analysis. This membrane plays an
important role in the mechanical operation of the VAD-InCor,
since it separates the blood chamber from the pneumatic
chamber, transmitting a pneumatic load to the blood that has
entered the blood chamber. The load repeats itself
cyclicaly. Therefore the performance, reliability and
durability of the membrane are critical for the full
functioning of the VAD. The mathematical model is based on
the large strain theory of thin shells and on the finite
element method. The snap through instability phenomenon,
which is responsible for transmission of the pneumatic load
to the blood, was observed in the membrane when modeled
mathematically and experimentally. Principal stresses and
strain distributions were obtrained with this model, at
certain load levels along the pre- and post-buckling paths.
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