Learning Forum

[ahmedkhalil_2011]

Hi,

how i can represent soil springs in autodyn?

Thanks 

[Chris Quan]

In Workbench Explicit Dynamics or Autodyn Component systems, definition of springs is one-dimensional. They are not 3D springs. 

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. 

If the deformation is very small and the soil behavior is almost linear elastic, the use of springs can simplify the approach.

[ahmedkhalil_2011]

thanks for help

There are other questions.

 Are there other soil types in the program materials library other than sand such as clay or silt? how can I represent saturated soil? 

thanks in advance

[ahmedkhalil_2011]

in which option can I create spring in the autodyn component system? 

thanks 

[Chris Quan]

To define spring elements, you need to use Explicit Dynamica system and insert Spring Elements under Connections. See the 1st screen snapshot below.

Then you can link the Explicit Dynamics system to Autodyn Component system, update both Setup cell of Explicit Dynamics and Autodyn Component systems to transfer the spring elements. See the 2nd screen snapshot below.