I'm new to this and just wanted to check if I got this right. While doing a buckling study, if you apply a force of 1 N and get a Load Factor of, let's say 5.0000e+005. Does that mean that the construction will buckle at a force of 500 kN?
Yes, that is correct. Load multiplied by the Buckling Load Factor will give you the theoretical load that the structure would support before it would fail by buckling.
It is the ratio of the buckling loads to the applied loads.
If buckling load factor is greater than 1 then buckling is not predicted.
Check out this link http://help.solidworks.com/2012/English/solidworks/cworks/buckling_load_factor.htm
Yes, I understand this. But if my goal is to find out how much force it can withstand before it buckles, applying a force of 1 N and then multiply it with the load factor would be the right way to do it, right?
In this case 1 N * 5.0000e+005 = 500 kN.
It seems right since applying a force of 500.000 N would give me a buckling load factor of 1.
It should go without saying that the factor should be used with a factor of safety. Seemingly minor manufacturing variations can significantly lower buckling loads so a factor is needed to allow for this. You also have to check whether plasticity will occurs before elastic buckling occurs.
How do you check if plasticity occurs before elastic buckling? Sorry if this is basic knowledge, but I'm trying to learn
You should be able to run a static study using the load that would cause it to buckle (i.e., at load factor = 1) and check the static stress. If it exceeds the proportional limit - it could be approaching yield (depending on material). Hope that helps.
It talks about it here a few slides down.
As pointed out by Timothy in this link;
A buckling load factor > 1 tells you that the buckling will occur beyond the static load capacity of the part, Hence buckling not predicted.
A buckling load factor = 1 tells you that the buckling will occur at the static load capacity of the part, Hence buckling is predicted.
A buckling load factor between 0 and 1 tells you that the buckling will occur at a fraction of the static load capacity of the part, Hence buckling predicted.
A buckling load factor < 0 tells you that the part is under tensile load, Hence buckling not predicted. but may occur if you reverse loads.
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