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Matlab fatigue commands

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Hi,

I am doing a fatigue analysis (using matlab and 3.5a) currently using an lcf method. I am getting strange results, like one part the component failing before 1 cycle and other parts failing after 170,000,000 cycles!! The model is basically a very small cylinder bent in the shape of a half circle. I am wondering if these results are to do with the fact that the application is really an example of hcf and not lcf?

Can anyone tell me any commands that has a 'number of cycles output' for an hcf method?

Thanks in advance,

Chris

1 Reply Last Post Nov 23, 2010, 3:48 a.m. EST

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Posted: 1 decade ago Nov 23, 2010, 3:48 a.m. EST
I should maybe point out that I am getting pretty much the same results regarless of the diameter of the cylinder, when keeping the length of it the same.
I should maybe point out that I am getting pretty much the same results regarless of the diameter of the cylinder, when keeping the length of it the same.

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