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Analysis of the geometrical influence of ring-opening samples on arterial circumferential residual stress reconstruction

This work consists of analyzing the impact of geometrical features (thickness and curvature) on the estimation of circumferential residual stresses in arteries. For this purpose, a specific sample of lamb abdominal artery is chosen for analysis and, through computational tools based on Python librar...

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Autores principales: Inostroza, Matías, Utrera, Andrés, García-Herrera, Claudio M., Rivera, Eugenio, Celentano, Diego J., Herrera, Emilio A.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Frontiers Media S.A. 2023
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10477989/
https://www.ncbi.nlm.nih.gov/pubmed/37675404
http://dx.doi.org/10.3389/fbioe.2023.1233939
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author Inostroza, Matías
Utrera, Andrés
García-Herrera, Claudio M.
Rivera, Eugenio
Celentano, Diego J.
Herrera, Emilio A.
author_facet Inostroza, Matías
Utrera, Andrés
García-Herrera, Claudio M.
Rivera, Eugenio
Celentano, Diego J.
Herrera, Emilio A.
author_sort Inostroza, Matías
collection PubMed
description This work consists of analyzing the impact of geometrical features (thickness and curvature) on the estimation of circumferential residual stresses in arteries. For this purpose, a specific sample of lamb abdominal artery is chosen for analysis and, through computational tools based on Python libraries, the stress-free geometry is captured after the ring opening test. Numerical simulations are then used to reconstruct the sample in order to estimate the circumferential residual stresses. Then, four stress-free geometry models are analyzed: an ideal geometry, i.e., constant curvature and thickness; a constant curvature and variable thickness geometry; a variable curvature and constant thickness geometry; and a variable curvature and thickness geometry. The numerical results show that models perform well from a geometric point of view, where the most different feature was the closed outer perimeter that differs about 14% from the closed real sample. As far as residual stress is concerned, differences up to 198% were found in more realistic models taking a constant curvature and thickness model as reference. Thus, the analysis of a realistic geometry with highly variable curvature and thickness can introduce, compared to an idealized geometry, significant differences in the estimation of residual stresses. This could indicate that the characterization of arterial residual stresses is not sufficient when considering only the opening angle and, therefore, it is also necessary to incorporate more geometrical variables.
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spelling pubmed-104779892023-09-06 Analysis of the geometrical influence of ring-opening samples on arterial circumferential residual stress reconstruction Inostroza, Matías Utrera, Andrés García-Herrera, Claudio M. Rivera, Eugenio Celentano, Diego J. Herrera, Emilio A. Front Bioeng Biotechnol Bioengineering and Biotechnology This work consists of analyzing the impact of geometrical features (thickness and curvature) on the estimation of circumferential residual stresses in arteries. For this purpose, a specific sample of lamb abdominal artery is chosen for analysis and, through computational tools based on Python libraries, the stress-free geometry is captured after the ring opening test. Numerical simulations are then used to reconstruct the sample in order to estimate the circumferential residual stresses. Then, four stress-free geometry models are analyzed: an ideal geometry, i.e., constant curvature and thickness; a constant curvature and variable thickness geometry; a variable curvature and constant thickness geometry; and a variable curvature and thickness geometry. The numerical results show that models perform well from a geometric point of view, where the most different feature was the closed outer perimeter that differs about 14% from the closed real sample. As far as residual stress is concerned, differences up to 198% were found in more realistic models taking a constant curvature and thickness model as reference. Thus, the analysis of a realistic geometry with highly variable curvature and thickness can introduce, compared to an idealized geometry, significant differences in the estimation of residual stresses. This could indicate that the characterization of arterial residual stresses is not sufficient when considering only the opening angle and, therefore, it is also necessary to incorporate more geometrical variables. Frontiers Media S.A. 2023-08-22 /pmc/articles/PMC10477989/ /pubmed/37675404 http://dx.doi.org/10.3389/fbioe.2023.1233939 Text en Copyright © 2023 Inostroza, Utrera, García-Herrera, Rivera, Celentano and Herrera. https://creativecommons.org/licenses/by/4.0/This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
spellingShingle Bioengineering and Biotechnology
Inostroza, Matías
Utrera, Andrés
García-Herrera, Claudio M.
Rivera, Eugenio
Celentano, Diego J.
Herrera, Emilio A.
Analysis of the geometrical influence of ring-opening samples on arterial circumferential residual stress reconstruction
title Analysis of the geometrical influence of ring-opening samples on arterial circumferential residual stress reconstruction
title_full Analysis of the geometrical influence of ring-opening samples on arterial circumferential residual stress reconstruction
title_fullStr Analysis of the geometrical influence of ring-opening samples on arterial circumferential residual stress reconstruction
title_full_unstemmed Analysis of the geometrical influence of ring-opening samples on arterial circumferential residual stress reconstruction
title_short Analysis of the geometrical influence of ring-opening samples on arterial circumferential residual stress reconstruction
title_sort analysis of the geometrical influence of ring-opening samples on arterial circumferential residual stress reconstruction
topic Bioengineering and Biotechnology
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10477989/
https://www.ncbi.nlm.nih.gov/pubmed/37675404
http://dx.doi.org/10.3389/fbioe.2023.1233939
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