The Surface Configuration dialog box manages the basic specifications for the stress-strain analysis of surfaces. The concept of the Configurations dialog box is described in Chapter Stress-Strain Analysis . It also explains how you can assign the objects.
Stress
In the Stresses tab, you can select the stresses to be calculated and specify the type of limit stress.
If you want to increase or reduce the limit stress for a stress type, you can scale it accordingly in the "Factor" column. If you select the "/" option, the stress is divided by the factor multiplied by "*".
If you want to use the user-defined stress as a reference instead of the limit stress saved in the material properties, select the limit stress type 'User' from the list. Thus, the field in the 'Limit Stress' column becomes accessible.
The "User-defined compression/tension" limit stress type allows you to specify sign-dependent limit stresses for certain stress components.
Stress Ranges
In the Stress Ranges tab, you can select the stress types for which the ranges are to be calculated and whether limit stresses are relevant in this case.
The limit stress type 'Without' is preset. This should allow for the analysis of stress ranges independent of standards. If you want to specify a limit stress, select the stress type 'User' in the list, then enter the corresponding value.
Strains
The Strains tab is available if you have activated the Global Settings dialog box. Here you can select the strains to be calculated.
If you want to specify the limit strain, activate the add-on in the model's - Base Data -material behavior Nonlinear material behavior (subject to surcharge). Then, assign the Plastic (Surfaces/Solids). In the analysis, the plastic strains are compared to the ultimate strains.