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004308
Alex Bacon, EIT
2020-02-10

Warning for Orthotropic Surfaces in RF-STEEL Surfaces

When trying to calculate the design in RF‑STEEL Surfaces, I receive Warning No. 1162 – Surface No. XX is of the type "Orthotropic" and cannot be designed. What does this warning mean?

Answer:

Orthotropic surfaces are non-linear and cannot be designed in the RF‑STEEL Surfaces add-on module. It is possible to get a full stress analysis in RFEM for orthotropic surfaces defined with the orthotropy type "Constant Thickness" and compared to limiting stresses manually. For all other orthotropy types, the program is not aware of the geometric properties for the surface at every FE mesh point that are needed to calculate stresses. An extensive and detailed FE model would need to be created. See FAQ 2468 for an example of this. Surface types need to be set to "Standard" to be designed in the add-on module.


FAQ|004308
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FAQ 004308 | When trying to calculate the design in RF-STEEL Surfaces, I receive Warning No. 1162...
Orthotropic Surface not Designable in RF-STEEL Surfaces Add-on Module
Orthotropic Surface not Designable in RF-STEEL Surfaces Add-on Module

Author

Alex is responsible for customer training, technical support, and continued program development for the North American market.

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