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004612
2020-08-11

Question

I have edited the material in my model. When starting the calculation, I get an error message. What can be the reason?


Answer:

Materials are required to define surfaces, cross-sections, and solids. The material properties affect the stiffnesses of these objects.

There are 13 material models available if you have a license for the RF‑MAT NL add-on module.

In the case of the abundance of material models, it is necessary to make sure that you assign the corresponding material model to the members and their surfaces/solids.

In the example shown here, surfaces have been generated from a member for a detailed analysis. There is still an unused cross-section defined (marked in blue) and the material is entered for the member cross-section as well as for the surfaces. When editing an existing material to Isotropic Nonlinear Elastic 2D/3D, the 2D/3D material model is also defined for the created member cross-section, which leads to the error message.

When working with members and surfaces / solids, we recommend creating more than one material.


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.