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stress at an integration point

Posted Aug 3, 2015, 8:05 a.m. EDT LiveLink for MATLAB, Structural Mechanics 0 Replies

Alieh Alipour
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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 Aug 3, 2015, 8:05 a.m. EDT
COMSOL Moderator

Hello Alieh Alipour

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