Evaluate stress on the cross section of a part (in this case gears)

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  • Last Post 04 December 2018
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PaulM posted this 03 December 2018

Hey,

I'm simulating the contact of two moving gears in Ansys Workbench (Static Structural) with multiple load steps and would like to evaluate the stresses underneath the surface in a radial cross section. 

Is there a method in Ansys Workbench to evaluate the stresses across a cross section? I know you can make a section cut of the simulated bodies with the options in the bottom right corner, but is there a way to create an additional stress result on that cut surface?

From searching for the problem on the internet I gathered that it might be possible to do with cutting the body prior to the simulation in e.g. Design Modeler and then create a result on the cut surface. I tried that and it kinda works but I get some weird stress concentrations in the cut region that were not there before cutting the gear bodies. I also heard somewhere that it should be possible to do in APDL but I didn't find any example of that.

Thanks in advance for any help!

Regards

Paul

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peteroznewman posted this 04 December 2018

Hey Paul,

In Mechanical, RMB on Coordinate Systems and create a new Coordinate System whose XY plane is the plane you want to plot stress on. I assume you know how to rotate a Coordinate System about an axis using the toolbar.  RMB on Model and Insert > Construction Geometry.  RMB on Construction Geometry and Insert > Surface.  On the Coordinate System line for that surface, select the Coordinate System you just made.

RMB on Solution and Insert > Stress > whichever one you want. In the Details window for that stress, change the Scoping Method from Geometry to Surface. That's it.

Regards,
Peter

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PaulM posted this 04 December 2018

Thank you! That is exactly what I was searching for.

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