No stress results under load combinations

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  • Last Post 28 May 2019
Aslinn posted this 28 May 2019

Hi,

I'm trying to run a structural analysis with load combinations on a glazing panel. I added the load combinations by the load step methods, and I got results for deformation and reaction. However, I cannot get the results for the combined load cases for stress.

I have 4 basic load cases (load steps), and 8 combined load cases. As shown, I have results of 12 load cases for deformation, but only four basic load cases for stress.

 

 

Could anyone please help me with this issue?

Thank you!

 

 

 

jj77 posted this 28 May 2019

not sure -

 

Ansys is not a pure civil structural software like Sofistik Strand7 LUSAS RFEM SAP2000,..., so it is not that straightforward to do combinations and envelopes.

 

The best way is not by using a single static and with the load tables or activate deactivate.

 

The recommended approach is to have a static with your load cases (separate), thus only one is activate at a load step (e.g., say there are 2 load steps; first gravity is active and pressure is inactive, and then the other way around for the second load step).

 

The static is transferred to a design assessment (also possible without, then just do the solution comb in static), and in which we can add a solution combination tool (go to Model and right click insert solution combination).

 

Then we can assign load combination factors per EC or any other standard :

 

 

For more inf on this see https://caeai.com/resources/using-design-assessment-ansys-e-learning

search also in help for design assessment and/or solution combination

 

 

 

 

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