Entering in RFEM
A surface release can be defined using the menu 'Insert' → 'Model Data' → 'Surface Releases' or using the project navigator data 'Model Data' → 'Surface Releases'. First, select the original surface, which is a basis for the surface release, graphically in the work window by using the 'New Surface Release' dialog box. Then, define a suitable surface release type, that is, in which local directions the objects are released or nonlinearities such as failure for only one direction. Similarly, you can also define inclined releases by means of spring constants. Finally, define the released objects.
Most common performance classes L1 and L2 with the corresponding basic values of the centric post -cracking tensile strength
Stress-strain curve in the tension area according to  for the determination of internal forces and deformations in nonlinear methods
Stress-strain curve on the tension side according to  for the cross-section design in the ultimate limit state
Depending on stiffness, mass, and damping, structures react differently to wind action.
- How can I additionally model welds for the connection of two surfaces with a contact solid?
- When entering a new material using the Diagram definition type, the first row is locked. How can I define the material?
- Are the models and presentations from Info Day 2017 freely available, and can you send them to me?
- What information is transferred when exporting the nonlinear stiffness? Can I display the exported values graphically?
- Is it also possible to design flat slabs in RF‑TENDON and RF‑TENDON Design?
- Is there any possibility in RFEM to consider friction for the horizontal reactions of a surface support?
- What is the difference between the materials Isotropic Plastic 1D and Isotropic Nonlinear Elastic 1D?
- Is it also possible to perform a deformation analysis in cracked state for a 2D model in RF‑CONCRETE Surfaces?
- I obtain different results when comparing the deformation analysis in the RF‑CONCRETE add-on modules and another calculation program. What could be the reason for this?
- I would like to define a line support with ineffective tension and apply the tension force on this line by using a nodal support instead. Why does the line support still receive a tension force?
Structural engineering software for finite element analysis (FEA) of planar and spatial structural systems consisting of plates, walls, shells, members (beams), solids and contact elements