LAPSE:2021.0358
Published Article
LAPSE:2021.0358
Preliminary Computational Analysis of Three Configurations for an Innovative Ventricular Chamber
May 17, 2021
Abstract
(1) Background: shape, dimension, hemodynamics, and hemocompatibility are just a few of the several challenging key points that must be addressed in designing any suitable solution for the ventricular chamber of mechanical circulatory support devices. A preliminary evaluation of different geometries of bellow-like ventricular chambers is herein proposed. The chambers were made with a polycarbonate urethane that is acknowledged to be a hemocompatible polymer. (2) Methods: an explicit dynamic computational analysis was performed. The actuation of the three chambers was simulated without the presence of an internal fluid. Maximum stress and strain values were identified, as well as the most critical regions. Geometric changes were checked during simulated motion to verify that the dimensional constraints were satisfied. (3) Results: one chamber appeared to be the best solution compared to the others, since its dimensional variations were negligible, and effective stresses and strains did not reach critical values. (4) Conclusions: the identification of the best geometric solution will allow proceeding with further experimental studies. Fluid−structure interactions and fatigue analyses were investigated.
(1) Background: shape, dimension, hemodynamics, and hemocompatibility are just a few of the several challenging key points that must be addressed in designing any suitable solution for the ventricular chamber of mechanical circulatory support devices. A preliminary evaluation of different geometries of bellow-like ventricular chambers is herein proposed. The chambers were made with a polycarbonate urethane that is acknowledged to be a hemocompatible polymer. (2) Methods: an explicit dynamic computational analysis was performed. The actuation of the three chambers was simulated without the presence of an internal fluid. Maximum stress and strain values were identified, as well as the most critical regions. Geometric changes were checked during simulated motion to verify that the dimensional constraints were satisfied. (3) Results: one chamber appeared to be the best solution compared to the others, since its dimensional variations were negligible, and effective stresses and strains did not reach critical values. (4) Conclusions: the identification of the best geometric solution will allow proceeding with further experimental studies. Fluid−structure interactions and fatigue analyses were investigated.
Record ID
Keywords
finite element analysis, LS DYNA, TAH, ventricular chamber
Subject
Suggested Citation
Candela V, Todesco M, Visentin A, Meneghetti G, Fabozzo A, Gerosa G, Bagno A. Preliminary Computational Analysis of Three Configurations for an Innovative Ventricular Chamber. (2021). LAPSE:2021.0358
Author Affiliations
Candela V: Department of Industrial Engineering, University of Padova, via Marzolo 9, 35131 Padova, Italy
Todesco M: Department of Industrial Engineering, University of Padova, via Marzolo 9, 35131 Padova, Italy; L.i.f.e.L.a.b. Program, Consorzio per la Ricerca Sanitaria (CORIS), Veneto Region, Via Giustiniani 2, 35128 Padova, Italy
Visentin A: Department of Industrial Engineering, University of Padova, via Marzolo 9, 35131 Padova, Italy
Meneghetti G: Department of Industrial Engineering, University of Padova, via Marzolo 9, 35131 Padova, Italy [ORCID]
Fabozzo A: L.i.f.e.L.a.b. Program, Consorzio per la Ricerca Sanitaria (CORIS), Veneto Region, Via Giustiniani 2, 35128 Padova, Italy; Department of Cardiac, Thoracic, Vascular Sciences and Public Health, University of Padova, via Giustiniani 2, 35127 Padova, Italy [ORCID]
Gerosa G: L.i.f.e.L.a.b. Program, Consorzio per la Ricerca Sanitaria (CORIS), Veneto Region, Via Giustiniani 2, 35128 Padova, Italy; Department of Cardiac, Thoracic, Vascular Sciences and Public Health, University of Padova, via Giustiniani 2, 35127 Padova, Italy
Bagno A: Department of Industrial Engineering, University of Padova, via Marzolo 9, 35131 Padova, Italy; L.i.f.e.L.a.b. Program, Consorzio per la Ricerca Sanitaria (CORIS), Veneto Region, Via Giustiniani 2, 35128 Padova, Italy [ORCID]
Todesco M: Department of Industrial Engineering, University of Padova, via Marzolo 9, 35131 Padova, Italy; L.i.f.e.L.a.b. Program, Consorzio per la Ricerca Sanitaria (CORIS), Veneto Region, Via Giustiniani 2, 35128 Padova, Italy
Visentin A: Department of Industrial Engineering, University of Padova, via Marzolo 9, 35131 Padova, Italy
Meneghetti G: Department of Industrial Engineering, University of Padova, via Marzolo 9, 35131 Padova, Italy [ORCID]
Fabozzo A: L.i.f.e.L.a.b. Program, Consorzio per la Ricerca Sanitaria (CORIS), Veneto Region, Via Giustiniani 2, 35128 Padova, Italy; Department of Cardiac, Thoracic, Vascular Sciences and Public Health, University of Padova, via Giustiniani 2, 35127 Padova, Italy [ORCID]
Gerosa G: L.i.f.e.L.a.b. Program, Consorzio per la Ricerca Sanitaria (CORIS), Veneto Region, Via Giustiniani 2, 35128 Padova, Italy; Department of Cardiac, Thoracic, Vascular Sciences and Public Health, University of Padova, via Giustiniani 2, 35127 Padova, Italy
Bagno A: Department of Industrial Engineering, University of Padova, via Marzolo 9, 35131 Padova, Italy; L.i.f.e.L.a.b. Program, Consorzio per la Ricerca Sanitaria (CORIS), Veneto Region, Via Giustiniani 2, 35128 Padova, Italy [ORCID]
Journal Name
Processes
Volume
8
Issue
11
Article Number
E1358
Year
2020
Publication Date
2020-10-27
ISSN
2227-9717
Version Comments
Original Submission
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PII: pr8111358, Publication Type: Journal Article
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Published Article
LAPSE:2021.0358
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External Link
https://doi.org/10.3390/pr8111358
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[v1] (Original Submission)
May 17, 2021
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May 17, 2021
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https://psecommunity.org/LAPSE:2021.0358
Record Owner
Calvin Tsay
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