Initial Penetrations In Interface

Sunilshanmugam

Hi Guys,

Im doing frontal collision using radioss, spot weld and adhesives were provided using connectors. Since there were interferences between spot weld and adhesives as shown in the figure. Both spot and adhesives will be there in model, is it advisable to continue with this. Since my major interferences and penetrations is between spot and adhesives. Can you provide me a better solution.

 

Also while providing type7 contact,

Case1 In my model both shell and solid part persists i have directly selected those parts in Master Entity and 

Case2 In my model , i have created skin for all solid parts with a thickness of 0.01mm and updated those in Master entity along with shell parts

 

in this which one is advisable, how to establish contact for those solid components.

 

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Pranav Hari

Hi Sunilshanmugam

 

Its advisable to create connectors using spring elements which is relatively easy. The current method is not recommended as it could affect the time step.

Check this video on creating connectors using spring property

https://www.youtube.com/watch?v=oQ5rancccVc

 

Regarding the type 7 contact, it is recommended to create a contact surface for solid and select the same as master. For slaves select the slave nodes of the shell.

You can create a contact surface from Analysis > contact surface

 

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Thanks

Sunilshanmugam

Hi Pranav Hari,

 

Thanks for your reply,

Since customer requirement is to create HEXA with contact for spot and adhesive. using the same is there anyother solution available.

Pranav Hari

Hi Sunilshanmugam

 

Can you share the model file. 

You can use the secure file transfer link if needed.

https://ftin.india.altair.com:8443/filedrop/~Ma3TaE&nbsp;

 

Thanks