Rege, Ameya Govind and Hillgärtner, Markus and Itskov, Mikhail (2019) Mechanics of biopolymer aerogels based on microstructures generated from 2-d Voronoi tessellations. The Journal of Supercritical Fluids, 151, pp. 24-29. Elsevier. doi: 10.1016/j.supflu.2019.04.018. ISSN 0896-8446.
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Official URL: https://www.sciencedirect.com/science/article/pii/S0896844618308684
Abstract
In this paper, the heterogeneous morphology of biopolymer aerogels is described using a 2-d Voronoi tessellation, which accounts for the randomized cell shapes of aerogels and adheres to the pore-size distributions obtained from experimental data. Accordingly, a two-dimensional periodic representative volume element (RVE) has been generated and simulated under compression. In particular, the sensitivity of the varying microstructural parameters within the RVE is analyzed. It is realized that the fiber diameter, the pore-size distribution, and the density of the cells within the aerogel network show a significant influence on their mechanical response. The trends of the model predictions are qualitatively in good agreement with the macroscopic experimental data of biopolymer aerogels.
Item URL in elib: | https://elib.dlr.de/127467/ | ||||||||||||
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Document Type: | Article | ||||||||||||
Title: | Mechanics of biopolymer aerogels based on microstructures generated from 2-d Voronoi tessellations | ||||||||||||
Authors: |
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Date: | 7 May 2019 | ||||||||||||
Journal or Publication Title: | The Journal of Supercritical Fluids | ||||||||||||
Refereed publication: | Yes | ||||||||||||
Open Access: | No | ||||||||||||
Gold Open Access: | No | ||||||||||||
In SCOPUS: | Yes | ||||||||||||
In ISI Web of Science: | Yes | ||||||||||||
Volume: | 151 | ||||||||||||
DOI : | 10.1016/j.supflu.2019.04.018 | ||||||||||||
Page Range: | pp. 24-29 | ||||||||||||
Publisher: | Elsevier | ||||||||||||
ISSN: | 0896-8446 | ||||||||||||
Status: | Published | ||||||||||||
Keywords: | Voronoi tessellation, Aerogel, Pore-size, Representative volume element, Periodic boundary condition | ||||||||||||
HGF - Research field: | Aeronautics, Space and Transport | ||||||||||||
HGF - Program: | Transport | ||||||||||||
HGF - Program Themes: | Road Transport | ||||||||||||
DLR - Research area: | Transport | ||||||||||||
DLR - Program: | V ST Straßenverkehr | ||||||||||||
DLR - Research theme (Project): | V - NGC Fahrzeugstruktur II | ||||||||||||
Location: | Köln-Porz | ||||||||||||
Institutes and Institutions: | Institute of Materials Research > Aerogels and Aerogel Composites | ||||||||||||
Deposited By: | Rege, Dr. Ameya Govind | ||||||||||||
Deposited On: | 06 Nov 2019 15:43 | ||||||||||||
Last Modified: | 06 Nov 2019 15:43 |
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