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fatigue analysis load time history

Altair Forum User

Please provide me some help on fatigue analysis. How to create Load-Time History Definition for fatigue analysis? What is meaning of load in load-time history definition? We have some load on component before we start the fatigue process. Is this scale factor of load?

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Altair Forum User

please refer to the Hypermesh tutorial (RD-2070: Fatigue (Stress - Life) Method))

it's A tutorial in help of the hypermesh program.

All the loads in time history should be Normalized ...Normalizing means that (Magnitude of loads in every second/ The largest magnitude of loads in time history)

that it results the magnitudes in range of [0,1]....

... If you refer to tutorial i mentioned you got you answers...it also teach you how to import a Load time history into your model....the time History can be written by An Excel worksheet that first column is Time & second column is Normalized Load magnitudes & it shoud be saved with the format of .CSV

the (Magnitude of the loads that you define in static subcases & loadsteps will be multiplied to your Normalized load time history )