Improving finite element models of roots-soil mechanical interactions
Keywords: tree anchorage, root architecture, simulation, biomechanics, overturning, failure, Abaqus
AbstractFinite element models (fem) of roots-soil mechanical interactions have been tested taking into consideration different levels of simplifications, i.e. considering the discretization of roots with solid elements and root-soil contact behaviour, and structural beam elements embedded in the soil matrix respectively. These two modelling options have been tested and compared simulating direct shear tests of reinforced soils. 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 discretized digitized Maritime pine root systems and to test the effect of root failure on the mechanical response of trees to overturning.
3 Methods for FSPMs
Authors who publish with this proceedings volume agree to the following terms:
- Authors retain copyright and grant the Conference organisers right of first publication with the work simultaneously licensed under a Creative Commons Attribution License that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this proceedings volume.
- Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the proceeding's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgement of its initial publication in this proceedings volume.