Contact analysis - cylinder/cube

Altair Forum User
Altair Forum User
Altair Employee
edited October 2020 in Community Q&A

My question is somehow similar to this one here:

I already conducted a simulation with OptiStruct similar to the one shown in the mentioned thread. I understand that possible contact surfaces are only defined in the undeformed state. However, my aim is to obtain a more advanced simulation.

Is there a modeling approach that looks for new contact surfaces (within a defined search distance) during the calculation?

 

Here is the hm-file of my test model:

And here a short outline of the model (unit system: N-mm-t-s):

  • cube with edge length = 1
  • cylinder with diameter as well as length = 1
  • element size: 0.1
  • material:
    • E = 210000
    • NU = 0.3
  • property card image: PSOLID
  • force on each node = 1 (110 loaded nodes)
  • all nodes at the lower side of the cube are constraint (dof 123456 locked)
  • 2 sets of contact surfaces. one for each component
  • interface
    • card image: CONTACT
    • type: FREEZE
    • slave: cylinder contact surface
    • master: cube contact surface
    • MORIENT: NORM
    • SRCHDIS = 0.01
  • load step: Linear static with SPC and LOAD analysis type defined

cylinder_cube_contact_xyz.PNG.f724903f34e6e5432713cc30d0b3ba14.PNGcylinder_cube_contact_yz.PNG.7c362617da69568fb238a654d69a8ef2.PNG

 

 

 

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