AnsweredAssumed Answered

Odd Stress Values in Corners

Question asked by David M on Jul 31, 2014
Latest reply on Jul 31, 2014 by Jared Conway

Hello Everyone,


I'm working on a simple plate, as you can see posted here, and I am trying to get stress values at the corners circled in red at different fillet radii. I've run into a problem where the stress trend breaks as the radius of the corner goes to 0mm (no fillet).


The loading on the part can be seen in the image, the forces are 1500lbs each, and material is AISI 304 at a 2mm thickness.



Untitled 1.png

Untitled 2.png


Here are my max stress results from my simulations:


No Radius: 234.6MPa

1mm: 523.4 MPa

2mm: 427.8 MPa

4mm: 331.2 MPa

6mm: 283.2 MPa

10mm: 248 MPa


From 1mm to 10mm the max stress gets lower as you would expect, but the max stress at a pure corner (0 radius) goes even lower than with a 10mm radius!


Does anyone have any insight as to why this is happening?


Thank you