curvature of shell181 elements

[anney]

Hi guys,

I´m doing my thesis and I have to calculate the gaussian curvature with values of Ansys.
Ansys gives me in the etable curvature changes (smisc,12=k11; smisc,13=k22; smisc,14=k12).

What are these values?
I thought it would be the second fundamental form but then the results aren´t very different from the expected results.

Can anyone help me? Thank you so much.

 

[scheah]

I'm not familiar with Gaussian Curvature. Would it be possible to reverse engineer it by modeling a few cantilever beams with shell181, applying a vertical force at the free end? As the analytical solution is known, you could compare them to the etable values.

Sorry if this is not much help.


Best regards,
Sze Kwan (Jason) Cheah

 

[anney]

Thank you so much for your answer.