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Ansys Learning Forum › Forums › Discuss Simulation › General Mechanical › SIF of the element › Reply To: SIF of the element

November 7, 2017 at 9:36 pm
peteroznewman
Subscriber

Hi Mom,


If you have a crack in your geometry, you can perform a Fracture Analysis on it.


There is a whole section of the online help about how to do that.



From your other post, I got the impression that the flaw in your solid model is more of a void than a crack. In that case, the Pre-Meshed Crack might work. That is where you use a named selection for the nodes that are on the crack front.


You insert a Fracture into the model and a Fracture Tool in the Solution branch and request the SIFS result.



Today I was playing with geometry to represent the air around an airfoil, so I re-purposed the geometry, assigned Structural Steel material property and defined a pre-meshed crack at the trailing edge. The bottom of the block is fixed and the top has an applied upward force. Here is the SIFS result from the Fracture Analysis.



I found a YouTube video that shows some of these operations in ANSYS 14.5


https://www.youtube.com/watch?v=_JOel_puByA


 


Cheers,
Peter