Desiccation cracking of heterogeneous clayey soil: Experiments, modeling and simulations

Hun, Darith;Yvonnet, Julien;Guilleminot, Johann;Dadda, Abdelali;Bornert, Michel;et.al.
(2021) Engineering Fracture Mechanics — Vol. 258, p. 108065 (2021)

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Authors
  • Hun, DarithUCLouvain
    Author
  • Yvonnet, JulienUniversité Paris-Est
    Author
  • Guilleminot, JohannDuke University
    Author
  • Dadda, AbdelaliEcole des ponts ParisTech
    Author
  • Bornert, MichelEcole des ponts ParisTech
    Author
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Abstract
Experimental results for the cracking of heterogeneous clay samples during desiccation are reported, and an associated numerical model is developed for comparison. The clay samples contain embedded rigid inclusions to induce heterogeneous strain fields during drying. The crack paths and local strain fields are monitored during the desiccation process using digital image correlation. A numerical phase field model for crack initiation and propagation is introduced and compared with the experimental results. A qualitative agreement is found for the obtained crack paths, whereas discrepancies remain for the local strain fields. A discussion regarding the comparison between the experimental results and model is provided.
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Citations

Hun, D., Yvonnet, J., Guilleminot, J., Dadda, A., Tang, A.-M., & Bornert, M. (2021). Desiccation cracking of heterogeneous clayey soil: Experiments, modeling and simulations. Engineering Fracture Mechanics, 258, 108065. https://doi.org/10.1016/j.engfracmech.2021.108065 (Original work published 2021)