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Stress concentration on hook

Question asked by John Munroe on Aug 24, 2015
Latest reply on Aug 24, 2015 by Bilounga Engolo Arthur Germain

Hi all

 

Similar to my other post, I'm trying to simulate a hoop pulling down on a hook with a 50N force.

 

This is what I've tried to emulate that a hoop sits on those top surfaces.

 

Capture2.PNG

 

 

However, it appears that stress concentrates at the edge of a fillet The magnitude of the stress is up to 200MPa, which exceeds the yield strength of 159MPa.

 

Capture.PNG

 

Any idea to why might that be the case? There should be more material in the fillet, so shouldn't it be a stronger area instead?

 

Thank you

 

John    

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