Learning Forum

[Gisel]

Hello,

I did an Eigenvalue Buckling analysis and the resulting load multiplier is very small; it is 1.272e-002. What does it mean when you get a very small load multiplier, and what does the pink highlight mean in the "Details" box (as seen in photo below)?

[peteroznewman]

Buckling Load = Load Multiplier * Applied Load
If you change your applied load to this value and solve buckling again, the new Load Multiplier will be close to 1.0
The other two values in the pink area are the minimum and maximum deformation in the plot.

[Gisel]

Thank you, Peter. I also inserted a thermal condition in the static structural analysis and I saw in one tutorial that they used the load multiplier to calculate the temperature at which the beam buckles. However, when I calculated it for my analysis, I got a very low value, close to room temperature, which doesn't make sense. In the tutorial, they got a sensible buckling temperature and I know I did my calculations correctly. Can the load multiplier also be used to calculate the buckling temperature?
Also, when I use the load multiplier to calculate the critical load and critical stress, I get the same results as my theoretical calculations using the formulas. But I don't understand why it's not working for the buckling temperature I'm trying to calculate.
Thank you, again

[peteroznewman]

I don't know about using the buckling solver to find a critical temperature.
You should create a new thread by clicking the Ask a Question but and be specific about asking about finding a critical temperature for buckling. This thread has been marked with an Accepted Answer, so ANSYS staff may not read it.

[Gisel]

Thank you, Peter. I will.