814x
004582
2020-08-03

Question

When entering a new material using the Diagram definition type, the first row is locked. How can I define the material?


Answer:

For the first point, the modulus of elasticity of the material is assumed in the material model, so that there is, so to speak, an initial state for the solver to ensure the numerical stability.

If no material is selected, the first point is not calculated as expected when creating the material model using the Diagram definition type, and cannot be adjusted reasonably.

To avoid this, you have to select the material in advance. Then, you can create the material model as usual, and adjust the points. The first point can now be adjusted with regard to the stress.


Author

Mr. Hoffmann is responsible for development in the areas of dynamic analysis, membrane structures, and RWIND. Furthermore, he provides technical support for our customers.