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Fatigue analysis based on rainflow counting

Hello everyone,

based on a transient analysis with a measured displacement signal I would like to conduct a fatigue analysis based on rainflow counting.

Is it possible for OS to calculate the rainflow matrix for each integration point?

Thanks in advance.

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Altair Forum User

Hi @JD3640

Do you mean each time integration?

Altair Forum User

Hi Prakash,

yes, that's right. I will have a randomly excited structure analyzied by transient response analysis with a random stress time history in each element.

If I do rainflow counting on the load it won't help as the structure responds according to it's eigenmodes and -frequencies.

I would like to use the Fatigue Process Manager, though.

Regards

JD3640

Altair Forum User

@JD3640 I will check and update to you soon.

Altair Forum User

Hi,

OS supports fatigue based on transient. There is also output request such as RNFLOW Please refer to OS document for more information.

Altair Forum User

OK, thanks for the information.