In Workbench Explicit Dynamics or Autodyn Component systems, definition of springs is one-dimensional. They are not 3D springs.Â
You didn't specify the application of the "soil springs" in your post.
If you are simulating highly nonlinear behavior, such as the material behavior including pressure hardening, plastic strain hardening, or material failure, it would be a good practice by not representing the complex soil behavior with springs. Solid elements in Lagrange grids or multi-material Euler solver or SPH particles may be the better apparoach.Â
If the deformation is very small and the soil behavior is almost linear elastic, the use of springs can simplify the approach.
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