Improving finite element models of roots-soil mechanical interactions

Yang Ming, Defossez Pauline, Fourcaud Thierry. 2013. Improving finite element models of roots-soil mechanical interactions. In : Proceedings of the 7th International Conference on Functional-Structural Plant Models (FSPM2013), Saariselkä, Finland, 9-14 June 2013. Eds. Risto Sievänen, Eero Nikinmaa, Christophe Godin, Anna Lintunen, Pekka Nygren. Vantaa : Finnish Society of Forest Science, 204-206. ISBN 978-951-651-408-9 International Conference on Functional-Structural Plant Models. 7, Saariselkä, Finlande, 9 Juin 2013/14 Juin 2013.

Résumé : Two finite element modelling approaches have been applied and compared to simulate direct shear tests of soils reinforced by roots. The "frictional behaviour" method used with solid elements predicted shear strength of the root-soil system 4.6-6.9% higher than that predicted with "embedded beam elements". This difference can be considered as negligible. Embedded beam elements were thus chosen to discretize digitized Maritime pine root systems in a tree anchorage model. Results exhibited contrasted mechanical responses when considering different root material properties.

Classification Agris : F62 - Physiologie végétale - Croissance et développement
F50 - Anatomie et morphologie des plantes
U10 - Informatique, mathématiques et statistiques
K01 - Foresterie - Considérations générales

Auteurs et affiliations

• Yang Ming, INRA (FRA)
• Defossez Pauline, INRA (FRA)
• Fourcaud Thierry, CIRAD-BIOS-UMR AMAP (FRA) ORCID: 0000-0001-9475-7239

Source : Cirad - Agritrop (https://agritrop.cirad.fr/571799/)

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