how ansys shell63 calculate nodal stress from gauss pt for dkt element

[hippo123]

In the ansys menu, it stated: a linear square fitting precedure to calcualte the nodal stress from 12 gauss point of the four discrete kirchhoff element. I tried and the resulting nodal stress do not perfectly match with results althrough I am sure the gauss point stresses are correctly calculated.

Anyone know how ansys do this part?

 

[3doorsdwn]

I always thought that (in addition to the Gauss points of an element) ANSYS was also figuring the stress at the nodes using the calculated displacements. I always thought that any "fitting" was between these nodes and the Gauss points (I could be mistaken on that).

I would think the error could be due to a variety of reasons (the fitting technique for one).

 

[hippo123]

thanks.

I have figured out the problem. But Ansys does not use the calculated displacement to fit the node.

Best wishes,
Hippo123