The first problem is that i can't decide which solver to choose, the second is how to define the forces in order to change the direction.
Solved! Go to Solution.
You can simulate this using a linear statics solution and the durability product in NX. It is assumed that your material properties include all of the required strength and fatigue properties necessary for the durability calculations mentioned below. Here is what I did in NX using the library material AISI_Steel_4340.
By default you will get the following output:
The event has options for fatigue life criterion, safety factors, cyclic stress-strain models, strength criterion (ultimate or yield), and others. The details of your analysis dictate which methods you’d want to use for an event. For example, if your linear statics results exceed the strength criterion anywhere on the model, then there is local plasticity and a strain-life approach with nonlinear strain results would be more appropriate. Alternatively for the same situation you could use the linear static results with a notch correction included. Fatigue safety results only apply to elastically loaded situations.
The NX online help includes several articles related to the durability product, including an overview of what material properties are required for specific calculation methods.
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