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Constitutive Modelling of Biopolymer Aerogels

Rege, Ameya (2022) Constitutive Modelling of Biopolymer Aerogels. ECCOMAS Congress 2022, 2022-06-05 - 2022-06-09, Oslo, Norwegen.

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Biopolymer aerogels exhibit a highly open-cellular nanoporous morphology, wherein the network consists of three-dimensionally interconnected fibres. In the first part of this contribution, constitutive modelling of such materials will be discussed, wherein the network is assumed to be made of square-shaped pores whose pore sizes correspond to the experimental pore-size distributions [1]. Within the same framework of the constitutive model, an approach to characterise the densification will be elucidated [2]. Given recent potential of applying such materials in tissue engineering, their mechanical and structural properties under wet conditions become interesting. An approach to extend the previously proposed constitutive model for characterising the properties under wet conditions will be described [3, 4]. All model results will be compared against the experimental data to demonstrate the validation of the proposed models. REFERENCES [1] A. Rege, S. Aney, and B. Milow, Influence of pore-size distributions and pore-wall mechanics on the mechanical behavior of cellular solids like aerogels. Phys. Rev. E, Vol. 103, pp. 043001, 2021. [2] A. Rege, Constitutive Modeling of the Densification Behavior in Open-Porous Cellular Solids. Materials, Vol. 14, pp. 2731, 2021. [3] A. Rege, L. Ratke, I. D. Külcü, and P. Gurikov, Stiffening of biopolymer aerogel networks upon wetting: A model-based study. J. Non-Cryst. Solids, Vol. 531, pp. 119859, 2020. [4] I. D. Külcü and A. Rege, Physics-informed constitutive modelling of hydrated biopolymer aerogel networks. Soft Matter, Vol. 17, pp. 5278-5283, 2021.

Item URL in elib:https://elib.dlr.de/193720/
Document Type:Conference or Workshop Item (Speech)
Title:Constitutive Modelling of Biopolymer Aerogels
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Rege, AmeyaUNSPECIFIEDhttps://orcid.org/0000-0001-9564-5482UNSPECIFIED
Date:6 June 2022
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In ISI Web of Science:No
Keywords:Open-porous materials, Constitutive model, Biopolymers, Aerogels
Event Title:ECCOMAS Congress 2022
Event Location:Oslo, Norwegen
Event Type:international Conference
Event Start Date:5 June 2022
Event End Date:9 June 2022
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 (old)
Location: Köln-Porz
Institutes and Institutions:Institute of Materials Research > Aerogels and Aerogel Composites
Deposited By: Rege, Dr. Ameya Govind
Deposited On:01 Feb 2023 08:41
Last Modified:24 Apr 2024 20:54

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