Discrete element method to predict the mechanical properties of pigmented coatings

Dan Varney, Martti Toivakka, Doug Bousfield

    Forskningsoutput: TidskriftsbidragArtikelVetenskapligPeer review

    3 Nedladdningar (Pure)

    Sammanfattning

    The mechanical properties of pigmented coating layers are important in a variety of applications. However, the large number of parameters that influence these properties as well as the numerous types of deformations challenge the prediction of the performance of these systems. A discrete element method (DEM) is proposed to predict the mechanical properties of paper coating layers that have a range of starch and latex content. The model is developed in both 2D and 3D and is adapted to tensile and flexural deformations. The model predictions are compared to experimental results in the literature. The predictions are generally good for the moduli and the strain at failure of the systems, but underpredict the maximum stress. This result may be caused by the complex particle size distribution of the experimental systems or by the impact of the brittleness of the starch when making the freestanding films.
    OriginalspråkOdefinierat/okänt
    Sidor (från-till)1683–1689
    Antal sidor7
    TidskriftJournal of Coatings Technology and Research
    Volym16
    Utgåva6
    DOI
    StatusPublicerad - 2019
    MoE-publikationstypA1 Tidskriftsartikel-refererad

    Nyckelord

    • Pigmented coating
    • cracking
    • Discrete element method

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