Menu

Discussion Forum

New Discussion
Filter

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.

Principal strain and directions for elastic strain tensor for an elastoplastic model

Posted Feb 29, 2020, 9:34 p.m. EST Structural & Acoustics, Geomechanics, Structural Mechanics Version 5.4 1 Reply

Yu Zhang
Send Private Message Flag post as spam

Please login with a confirmed email address before reporting spam

Dear all,

I want to calculate the Principal strain and directions for ELASTIC strain tensor in a elastic-plastic model. I found that the principla strain and directions given in COMSOL are for the total strain tensor, rather than the elastic strain tensor. Could you please give me some idea how to achieve that?

Thanks a lot.

-------------------
Yu Zhang
1 Reply Last Post Mar 2, 2020, 3:01 a.m. EST
Henrik Sönnerlind COMSOL Employee

Please login with a confirmed email address before reporting spam

Posted: 5 years ago Mar 2, 2020, 3:01 a.m. EST
Updated: 5 years ago Mar 2, 2020, 3:01 a.m. EST

You can compute eigenvalues and eigenvectors for any symmetric tensor using the Matrix Diagonalization node, found under Definitions->Variable Utilities. To get access to Variable Utilities, you need to enable it under Show More Options.

-------------------
Henrik Sönnerlind
COMSOL
You can compute eigenvalues and eigenvectors for any symmetric tensor using the *Matrix Diagonalization* node, found under *Definitions*->*Variable Utilities*. To get access to *Variable Utilities*, you need to enable it under *Show More Options*.

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.

Suggested Content