How to obtain the contact force, using the Force Reaction, or by Multiplying Pressure and Area

[Swun]

Hello,

i have a question, hope someone give me some explanation. i want to obtain the contact force, maybe we can obtain the Force Reaction, or Multiply the Pressure in the Contact Tool and the Contact Area in the Solution Information, which one is right? Thanks a lot.

 

[rb1957]

Yes.

I think you're using some FEA, which?

Contact forces can be extracted from the contact element or the contacting nodes (nodal force balance).

I suspect that the contact pressure is not uniform over the contact area, so p*A is not necessarily a good calc. It makes sense that your "contact tool" tells you pressure at each node, so you could (or maybe the tool can) calc average pressure.

another day in paradise, or is paradise one day closer ?

 

[Swun]

thank you very much. how can i extract it from the contact element. i think in the workbench, is it right that Reaction obtained when i chose the contact surface. the target side and contact side are always different no matter how i select the symmetry or asymmetry behavior in the contact settings, so which one is right, or should we calc the average of them?

 

[rb1957]

what software are you running ?

another day in paradise, or is paradise one day closer ?

 

[Swun]

workbench

 

[rb1957]

sorry, I don't know that s/ware … try youtube ! (seriously)

another day in paradise, or is paradise one day closer ?

 

[Tmoose]

workbench sounds like Ansys.

 

[rb1957]

it would've been nice to say ANSYS Workbench, but presumably it was assumed (but then you know … )

if ANSYS, then try the ANSYS FEA forum.

another day in paradise, or is paradise one day closer ?

 

[Swun]

great, thanks a lot