Eng-Tips is the largest engineering community on the Internet

Intelligent Work Forums for Engineering Professionals

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

Abaqus or Ansys

Status
Not open for further replies.

trajmarina

Civil/Environmental
Aug 18, 2006
3
DE
I have to implement a new constitutive relation in a commercial FE code. Can somebody help me with the tips: which of them (Abaqur or Ansys) is better and easier for programing?
 
Replies continue below

Recommended for you

You can code the constitutive response in ABAQUS using Fortran subroutines (namely the UMAT subroutine, which is described in the ABAQUS documentation).

 
You can also code constitutive relationships in more than one stress-strain metric (Euler, Lagrange, etc.) in ADINA, also in Fortran I think. 10 years ago that was my doctoral project--nonlinear viscoelastic constitutive equations, and I used ADINA.
 
Hi,
every hi-end FE program will allow you to do so. It is possible also in Ansys (I mention it only because it wasn't named by the previous posters). I'd suggest to choose the hi-end FE system for which YOU are more familiar with.

Regards
 
Thank you very much for your hints. I am more familiar with ANSYS but I have used it just for modeling not for programing. As I have understood well for both of them I have to use Fortran? The theory that has to be programed is already difficult so I want to make a good choice for the program to avoid additional problems.
 
You may consider calling external programs from your FEA code (mathcad, etc).
 
Status
Not open for further replies.

Part and Inventory Search

Sponsor

Back
Top