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GAYE

Freeze or tie in linear analysis

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Hello every body here,

this forum is really helpful, just keep the good work !

I know that in general contact problem is non linear BUT i would like to know if it is possible to perform "linear analysis" with optistruct when the contact interface type is set to freeze or tie ?

 

Thanks a lot.

 

Best regards,

 

GAYE

 

 

 

 

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On 4/29/2016 at 11:46 AM, GAYE said:

Hello every body here,

this forum is really helpful, just keep the good work !

I know that in general contact problem is non linear BUT i would like to know if it is possible to perform "linear analysis" with optistruct when the contact interface type is set to freeze or tie ?

 

Thanks a lot.

 

Best regards,

 

GAYE

 

 

 

 

 

Hi Gaye,

 

Using "Freeze" contact in OptiStruct is no different than having the parts of your model connected at common nodes.  Internally OptiStruct creates a bunch of constraint equations to tie everything together.  I frequently run linear simulations using "Freeze" contact without issue.

 

 

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