traction separation for debonding behaviour using 6.61

[cck685c]

I am new to the ABAQUS software and aim to do a 2d analysis on the debonding behaviour of restored teeth. I am using abaqus CAE 6.6. Can someone help me on what is the next step to do? I drawn the parts, den I assemble them, set up the boundary conditions.

Do i set up the master slave contact for every parts next? Or do I use tie instead? or together? the finer meshed part should be master right?


Question is, how do I set up the traction separation thingy using abaqus CAE 6.6? I define the material properties, assign the section, set up the max stress, strain criteria. den do I have to mesh the section with cohesive elements? I tried reading the whole abaqus manual but it seems pretty vague. The examples dun seem to be updated as well.... I tried to mesh the cement as cohesive elements but it keeps replying that only the sweep algorithm is supported for cohesive elements..

For the traction separation, do i have to draw a separate part for the interface? like dentin, interface, cement? or can i use assign traction separation properties to cement? what are the things I should do to set up the debonding behaviour usg abaqus CAE?

There was a similar post but what what mentioned was using the keywords and such. Is there anyway I can use abaqus CAE 6.6 to achieve the same results?

Thank you all for taking time off to read this lengthy post.

 

[brep]

Try looking through the following thread from last year (it contains some tips for cohesive element modeling for a tooth) Make sure you read my posts (brep) as some of the other replies were going off track. There's even an example python script attached...

http://www.eng-tips.com/viewthread.cfm?qid=154207

 

[xerf]

The CAE-based modeling aspects using cohesive elements are described in
ABAQUS/CAE User's Manual-> 21.1 Modeling adhesive joints and bonded interfaces

 

[cck685c]

Thank you very much. Do I actually use the traction separation or is the seam / crack module enough to simulate the behaviour?

I am trying to get a test run of things, but i kep getting this

"degree of 6 is not active in this model and can not be restrained."

How do i rectify this? Thank you all very much for the kind advice