The thermal expansion method certainly works, but Abaqus contact also includes an interference fit capability.
The model geometry is generated with an overlap between inner and outer cylinders. If you are building your model using keywords, look up *CONTACT INTERFERENCE, SHRINK
This functionality is also supported in Abaqus/CAE (look in section 15.12.1 of the Abaqus 6.6 Users' Manual).
Many times, when I do shrink-fit models, I have additional loads to consider so I set up a multi-step analysis in which step 1 is used to resolve the effect of the interference and then subsequent steps apply additional loads.
Note that it's probably a good idea to check the shrink-fit results against textbook equations the first time you try this.
DLL
Danny L. Levine, Ph.D., P.E.
Zimmer, Inc., Warsaw, Indiana
http://www.zimmer.com
Albert Einstein said: "The important thing is not to stop questioning."
-----Original Message-----
From: ***@yahoogroups.com [mailto:***@yahoogroups.com] On Behalf Of george jefferson
Sent: Wednesday, August 30, 2006 4:31 PM
To: ***@yahoogroups.com
Subject: Re: [ABAQUS] interference fit
One approach is to use thermal expansion. Assuming you are not
otherwise doing thermal analysis, make your parts so there is a gap
and assign an artificial thermal expansion to one of the parts and
apply a uniform temperature field to result in the desired interference.
Post by hyperrvWhat is the best method to simulate interference fit of 2 hollow
cylinders of different materials given the interference and bottom face
of outer cylinder is fixed with the inner cylinder is smaller in
height. Output required is the stress.