Tie contact in NLGEOM analysis

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

Hello,

 

I want to perform a geomteric non-linear analysis combined with a perfectly plastic material model. Because i have some intefaces in my model that are connected with each other, but the meshes do not correspond (different size, and at some points do not touch each other), i used a tie contact between these to surfaces. However, i get some errors about the search distance between these surfaces with tie contacts.

 

I have basically two questions here;

 

1) Is it possible to tie two meshes that do not touch each other with a tie contact? (no problems in linear analysis)

2) What is the difference between a tie contact or a contact with freeze property?

 

Thanks.

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Answers

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited December 2015

    Hi Roy,

    Can you try with FREEZE contact?

    in CONTACT, search distance is a function of element size.

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