Relation to the small strain theory

Sanjay Govindjee — Fri, 10 Jul 2009 05:27:37 -0400

If you do it this way there are many nice algorithmic things that happen. One that many people like is that at some level the algorithm looks a lot like the one that appears in the small strain theory.

Prof. Dr. Sanjay Govindjee
University of California, Berkeley

Spectral decomposition

WaiChing Sun — Thu, 09 Jul 2009 13:36:32 -0400

Dear all,

Many numerical implementation of plasticity model uses spectral decomposition to represent the Cauchy stress, elastic strain, such that stress update algorithm is written in the principal directions. As a result, I wonder what makes it benefical to write the stress update algorithm in spectral form?

Thanks,

WaiChing Sun

iMechanica - Spectral decomposition - Comments

Relation to the small strain theory

Spectral decomposition