µFEM modelling of wood cell deformation under pulping-type dynamic loads

Stefania Fortino, Petr Hradil, Lauri Salminen

    Research output: Chapter in Book/Report/Conference proceedingChapter or book articleProfessional


    Compressive and shear loads applied to wet woodchips at high values of speed and temperature during thermo-mechanical (TM) pulping are aimed at separating wood fibres from the raw material in order to increase both the flexibility and the bonding ability of the fibres. This work proposes a computational approach for the simulation of wood cell deformation finalized to a deeper understanding of the most consuming mechanism during TM pulping, that is, the fibre cell wall opening. A flexible µFEM tool for Abaqus code has been developed which uses an automated script for parametric model generation. The use of the proposed numerical tool in the presence of different pulping-type loading conditions can provide suggestions for the energy saving during thermo-mechanical pulping processes.
    Original languageEnglish
    Title of host publicationMultiscale modelling and design for engineering application
    EditorsTarja Laitinen, Kim Wallin
    Place of PublicationEspoo
    PublisherVTT Technical Research Centre of Finland
    ISBN (Electronic)978-951-38-7914-3
    ISBN (Print)978-951-38-7913-6
    Publication statusPublished - 2013
    MoE publication typeD2 Article in professional manuals or guides or professional information systems or text book material

    Publication series

    SeriesVTT Technology


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