Tek-Tips is the largest IT community on the Internet today!

Members share and learn making Tek-Tips Forums the best source of peer-reviewed technical information on the Internet!

  • Congratulations TugboatEng on being selected by the Eng-Tips community for having the most helpful posts in the forums last week. Way to Go!

BC on contact and constrained surfaces

Status
Not open for further replies.

mastrogeorge

Aerospace
Joined
May 15, 2013
Messages
5
Location
DE
Hello ,

i have a problem for my Diploma Thesis . I work on Abaqus and the drawing i upload is the side view of what i am trying to model . It is a connection of two sandwich construction plates .

The blue it is a solid with the properties of a honeycomb core .
The red it is a shell representing the plates of the sandwich and
the black it is the connection corner also modeled as a shell

I want to have a totaly contact between red and blue so i used tie constrain. Between black and red i modeled 4 fasteners and i set a surface contact with pressure-depnted thermal conductance . At ccontacts master is the black and at constrains the red .

I have problem with the boundary conditions . I want to apply temperature BC on every red plate and i want to fix the ``free`` sides of the sandwich constractions (red and blue ) .

Every time i apply only one temperature it is ok . If i apply more than one the it says too many attempts for this increment .

I don´t know what is the problem . Could you please help me ?

Thanks
 
Status
Not open for further replies.

Part and Inventory Search

Sponsor

Back
Top