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GW_41783104-Participant
4-Participant
May 17, 2026
Question

O-ring compress simulation by CREO ANSYS Simulation

  • May 17, 2026
  • 3 replies
  • 124 views

Hello all

I want to simulate the O-ring contact stress under a certain displacement, when I meshing the part, it pop out the window as below.

it seems that there is something wrong with material assignment. the material property is shown as below(just an example, not real case).  the Mooney-Rivlin model was used to describe the material property.

 

Could anyone help me check what’s wrong here?

3 replies

V
vnamboodheriCommunity Manager
Community Moderator
May 25, 2026

Hi ​@GW_4178310,

Thank you for your question. 

Your post appears well documented but has not yet received any response. I am replying to raise awareness. Hopefully, another community member will be able to help.

Also, feel free to add any additional information you think might be relevant. 

Thanks,
Vivek N
Community Moderation Team

M
MS_989272510-Marble
10-Marble
May 25, 2026

Kindly apply some realistics material values, not the random one.

 

G
GW_41783104-ParticipantAuthor
4-Participant
May 29, 2026

Thanks very much for your reply. I changed the density to a reasonable value 1.2g/cm3, but same error exists.

 

G
GW_41783104-ParticipantAuthor
4-Participant
May 29, 2026

Additional information, if I use the Neo-Hookean model as below, it works. no issues.

 

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