Axisymmetrie problem

[aslfd]

hello,

I simulate a mechanical joining method "clinching": 2D Axisymmertic in Dynamic Impl
I try stamping two sheets (deformable) whit a punch rigid. I used simple contact friction 0.2

During the simulation the edges in the end of the sheets don't move. The stress around the punch becomes very important and the elements are distorted


Thanks

 

[rstupplebeen]

For that level of deformation you may need to use CEL or adaptive remeshing. The edges of the sheets not moving could be due to your friction value. Since this is an axi-symmetric analysis out of plane wrinkling is not possible. The edges of the sheets will be in tension similar to a punch shear test.

I'm not sure why the image didn't come through in your post since the syntax looks correct but I'll try to post it again for you.

I hope this helps.
Rob

Rob Stupplebeen
OptimalDevice.com/blog
Rob's LinkedIn

 

[aslfd]

Rob, thanks for your answer!
I tried to use adaptive re-meshing but i have a error message about the "error variable"

--> no error variables are valid for the selected step type

 

[Mustaine3]

The results look like the speed of the tool movement is very high. The surrounding material has no time to move. You should check if that is correct and reflects the reality.