XANSYS Message: 20652 [Go back to message list]
[bookmark on del.icio.us]
No rating yet
Rate item:

Subject: Substructuring/Superelement/Crack propagation
Author: sbordas@
Date: 2001-01-30 18:07:00

Hello,

For research purposes, my group is thinking of using ANSYS as a tool
to generate superelement stiffness matrices for structural stress
analysis.

At this point, we have an I-DEAS model from which we can export a
universal file. There may also be a way in which we could export our
model to an ANSYS compatible format, but this needs to be checked.

Our goal is to isolate a given region of this model, and make a
superelement out of the remainder of the model, whose behavior we are
not interested in. Then, we would use this superelement in
conjunction with another, more refined mesh for the region of
interest and run some crack propagation studies with the code that
was written in our department at Northwestern University.

We don't know much about Ansys, but it seems to us that it would be
the way to go. How feasible does it seem to you ? How would you go
about doing it ? Has any of you already done it ? Where can I find an
example of this kind of study/the format of the superelement file ?
In particular, is it possible to access the stiffness matrix
representing the superelement ?

Thank you very much for your help,

Stephane

Posts possibly associated with message #20652AuthorDateScore
20652Substructuring/Superelement/Crack propagationsbordas@2001/01/30 
20717Re: Substructuring/Superelement/Crack propagationRoth, John jroth@2001/01/31 
20721Re: Substructuring/Superelement/Crack propagationStephane Pierre Bordas spb276@2001/01/31