Many new users have a general question related to boundary conditions for structural analysis: “I want to apply a force to a surface but I cannot select any surfaces to apply a force on. I can only select nodal load, but cannot see the force boundary condition.”

The following information will help you.

**Reason for Basic Boundary conditions:**

1.SimScale provides user with functionality to use two types of solvers for Structural analysis.

2.Type ‘Static analysis’ is a basic setup which has Calculix running as a FEA solver. The option of boundary conditions provided are as follows:

3.Type ‘Static analysis - advanced’ is a more advanced which has CodeAster as the backend FEA solver. The option of boundary conditions provided are as follows:

4.Since you chose the analysis type to be ‘Static analysis’, you can only view nodal load.

Therefore, in order to use more variety of boundary conditions, select ‘Static analysis - advanced’ to be the analysis type.

# Update [July 12th 2017]

With today release we made some changes to the default analysis types, their naming and visibility. From now on the default **static** and **dynamic** analysis types have all available load and constraint options as they are now based on the Code-Aster solver and the previous **advanced** analysis types. The CalculiX-based analysis types are still available via the solver perspective choosing the Calculix solver. For more details see the release notes.