Geometric and finite element modeling of biopolymer aerogels to characterize their microstructural and mechanical properties
Abstract: Biopolymer aerogels belong to a class of highly open‐porous cellular materials. Their macroscopic mechanical properties (such as elasticity or thermal conductivity) depend on microstructural features (namely pore size distribution (PSD), fiber diameter and solid fraction), which can be tailored by different synthesis and drying routes. The design of modern aerogel materials requires a better perception into the microstructure and its influence on the mechanical properties. To predict the material properties using simulation, it is significant to construct a geometric model which is sufficiently precise to represent the microstructure of real materials. A tessellation approach based on Voronoi diagrams is a powerful tool to model such cellular‐like materials. In this contribution, the diversified cellular morphology of aerogels is described computationally using a Voronoi tessellation‐based approach [1]. Accordingly, Voronoi tessellations are generated to create periodic representative volume elements (RVEs) resembling the microstructural properties of the cellular network. Stress‐strain curves resulting from finite element simulations of these RVEs and experiments of the aerogels under compression are compared. This work is an extension of our previous Voronoi tessellation‐based on the 2‐d description of biopolymer aerogels [2].
- Location
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Deutsche Nationalbibliothek Frankfurt am Main
- Extent
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Online-Ressource
- Language
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Englisch
- Bibliographic citation
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Geometric and finite element modeling of biopolymer aerogels to characterize their microstructural and mechanical properties ; volume:21 ; number:1 ; year:2021 ; extent:2
Proceedings in applied mathematics and mechanics ; 21, Heft 1 (2021) (gesamt 2)
- Creator
- DOI
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10.1002/pamm.202100122
- URN
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urn:nbn:de:101:1-2021121514163825076582
- Rights
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Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.
- Last update
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15.08.2025, 7:37 AM CEST
Data provider
Deutsche Nationalbibliothek. If you have any questions about the object, please contact the data provider.
Associated
- Chandrasekaran, Rajesh
- Hillgärtner, Markus
- Rege, Ameya
- Milow, Barbara
- Itskov, Mikhail
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