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Dosta, Maksym [Author]; Jarolin, Kolja [Author]; Gurikov, Pavel [Author] ; Technische Universität Hamburg, Technische Universität Hamburg Institute of Solids Process Engineering & Particle Technology, Technische Universität Hamburg Institute of Thermal Separation Processes

Modelling of mechanical behavior of biopolymer alginate aerogels using the bonded-particle model

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  • Media type: E-Article
  • Title: Modelling of mechanical behavior of biopolymer alginate aerogels using the bonded-particle model
  • Contributor: Dosta, Maksym [Author]; Jarolin, Kolja [Author]; Gurikov, Pavel [Author]
  • Corporation: Technische Universität Hamburg ; Technische Universität Hamburg, Institute of Solids Process Engineering & Particle Technology ; Technische Universität Hamburg, Institute of Thermal Separation Processes
  • Published: 12 July 2019
  • Published in: Molecules ; 24(2019,14), Artikel-Nummer 2543, insgesamt 14 Seiten
  • Language: English
  • DOI: 10.15480/882.2364; 10.3390%2Fmolecules24142543
  • Identifier:
  • Keywords: mechanical behavior ; plastic deformation ; aerogels ; discrete element method ; bonded-particle model
  • Origination:
  • Footnote: Sonstige Körperschaft: Technische Universität Hamburg
    Sonstige Körperschaft: Technische Universität Hamburg, Institute of Solids Process Engineering & Particle Technology
    Sonstige Körperschaft: Technische Universität Hamburg, Institute of Thermal Separation Processes
  • Description: A novel mesoscale modelling approach for the investigation of mechanical properties of alginate aerogels is proposed. This method is based on the discrete element method and bonded-particle model. The nanostructure of aerogel is not directly considered, instead the highly porous structure of aerogels is represented on the mesoscale as a set of solid particles connected by solid bonds. To describe the rheological material behavior, a new elastic-plastic functional model for the solids bonds has been developed. This model has been derived based on the self-similarity principle for the material behavior on the macro and mesoscales. To analyze the effectiveness of the proposed method, the behavior of alginate aerogels with different crosslinking degrees (calcium content) was analyzed. The comparison between experimental and numerical results has shown that the proposed approach can be effectively used to predict the mechanical behavior of aerogels on the macroscale.
  • Access State: Open Access