Discussion Closed This discussion was created more than 6 months ago and has been closed. To start a new discussion with a link back to this one, click here.

stress at an integration point

Please login with a confirmed email address before reporting spam

Hello COMSOL users and experts!

I have written a code in Matlab for one guassian point that gives a relationship between applied strain and stress. Therfore the strain is an input and stress is the output. The model simulates the elastoplastic behaviour of porous material like soil and unbound aggregates.

I want to use this function as an external function working with COMSOL. It is very comlicated to be implemented directly into COMSOL. So I want to have a model in COMSOL for finite element analysis such that I can do the following in each time step

1- Apply the load in COMSOL
2-Calculate stress and strain at each Gaussian point
3-Give these values to MATLAB and update new values of stresses
4-return modified values of stresses to COMSOL and do the finite element analysis and calcualte internal forces

I appreciate your help in advance!
Best,

Alieh


0 Replies Last Post 3 août 2015, 08:05 UTC−4
COMSOL Moderator

Hello Alieh Alipour

Your Discussion has gone 30 days without a reply. If you still need help with COMSOL and have an on-subscription license, please visit our Support Center for help.

If you do not hold an on-subscription license, you may find an answer in another Discussion or in the Knowledge Base.

Note that while COMSOL employees may participate in the discussion forum, COMSOL® software users who are on-subscription should submit their questions via the Support Center for a more comprehensive response from the Technical Support team.