Learning Forum

[Tim Dietl]

Hello everyone,

I have serveral warning messages and I can't solve the model. 

So I checked the gap with the contact tool, but I didn't find anything supspicious. 

This is another warning message.

I am not sure what could be the problem for this. Do you have an idea?

Thanks in advance!

[peteroznewman]

Hello Tim,

Even when the contact appears closed, if the size of the Initial substep is too large, the moving part can pass through the contact and give you that error.

Increase the number of Initial Substeps by a factor of 100 and try to solve again.  If you get the same error add another step to the number of steps and change the load applied in Step 1 to 1% of the original load, then Step 2 can be the original load.  This works if the load is a force or pressure but not if the load was Standard Earth Gravity. In the later case, you have to replace Standard Earth Gravity with Acceleration so you can apply 1% of 9.8 m/s^2 in Step 1.

[Tim Dietl]

Hello Peter, thank you for your answer. So I increased the Initial Substeps and lowered the bolt pretension (that is for now the only load) and I get the solution now but two of the bolts just pass through the material. All the bolts have same contact settings. I will check it again.

[Tim Dietl]

Of course, the mesh will be changed to a better mesh. But for now the calculation time is more important until I find the problem.

[Tim Dietl]

So I applied a moment now and this is what happens. So something is definitely not right.

[Tim Dietl]

Problem fixed, it was a SpaceClaim Bug with the Shared Tool. Thank you for your help as always!