Your instructions are clear and concise. Thank you so very much!

Helpful instructions, thank you.

THANKS A LOT for this amazing tutorial. really really helpful for beginner

Hello can u show me how to model a multi storey building with courtyard Thanks in advance

how many nodes generated in this model? I think academic version has to be limited to 1000 nodes

@ansysfeaexamples9351

3 жыл бұрын

The free Student license has a node or element limit of 32,000. This model easily fits within that limit, it has 8,775 nodes.

And why 6 in the Newton Rapson residuals?

@ansysfeaexamples9351

3 жыл бұрын

You can use a minimum of 1 N-R Residual Force plot. It doesn't cost much to have more than one. On some problems, the location of the maximum NR residual bounces around the model so 3 to 6 is a good number to see if the location is consistent so you can be confident that you are refining the mesh at the right location.

I am unable to select faces to apply pretension. Could you please help me with this problem?

@ansysfeaexamples9351

4 жыл бұрын

You must have a solid body with a cylindrical face on it. If you need more help, become a member on studentcommunity.ansys.com and create a New Discussion.

OK...I've set up the analysis exactly the same way in Nastran (but many more tet10 elements) but I'm getting wildly different results - max deflection 0.82mm, the stress field is pretty much the same but the values on the bolt itself are very much higher - max 2100MPa. Others?

@eartheartbaratheon791

29 күн бұрын

Ok...Two things...1 - My hug stress level is a singularity due to the way I need to apply preload in Nastran. 2 - The author has shown X-axis directional displacement instead of Total displacement. My Nastran outcomes align nicely now. Fields looks similar, however displacement calues are a bit different in X direction, range = -0.16 to +0.0187 compared to author's -0.1 to 0.023

@ansysfeaexamples9351

8 сағат бұрын

When I model a bolt preload for a bolted joint, I generally don't look at the stress in the bolt because I idealize the bolt leaving a sharp interior corner that creates a singularity. I use a separate Excel spreadsheet for bolt stress calculations. The Ansys model is used to evaluate the stress in the two parts that are being loaded after being bolted together.

Why 5 substeps?

@ansysfeaexamples9351

3 жыл бұрын

One substep might be too few and cause the solver to do a bisection on the stepsize, wasting time. It might solve with 3 substeps, but each one might need more iterations.

The volume is too low.