Ansys contact problem!!

[lgianluca]

Dear friends,
I'm dealing with a spring sheet inserction on a tube.
I'm conducting a static structral analysis because i would understand the max stress on the spring element.
The simulation is a 2D sim. to let reduce the computing time.
The friction contact was regularly detected (see image attached).
My problem is that applimg a displacement on the spring i'm not able to see the spring deformation (see results images).
Please help me because i'm loosing mi life!!!!!
Thanks friends!!

 

[Erik Panos Kostson]

Great. Good that it helped!

 

[lgianluca]

Erik do you have a database where it possible have download material proprieties for Ansys. Matweb is not a free database and besides there isn?t any plastic behaviour material descriction.
thanks again

 

[Erik Panos Kostson]

unfortunately I do not have anything like that.
Search the posts in the forums here on engtips, because it is likely that someone has asked that before.

 

[lgianluca]

Eric usually do you consider the material non-linear beahaviour or you adopt the linear curve? it's really hard find plastic curve and information for different materials.

 

[Erik Panos Kostson]

To be honest, I am not doing much analysis these days. I develop/programme scripts (FEA), and provide/responsible for customer support for Strand7, so I do not carry out any analysis these days.

If you have an specific question about nonlinear properties of certain materials, you can post it as another question. I am sure people will have some good feedback (they cannot do it here though since this discussion has got very long .

So add another post if you have any specific question about some material properties.

 

[lgianluca]

you have right, i'm new in the forum

 

[karachun]

In 90% cases bilinear model is enough.