NonlinearHoffman
Orthotropic Hoffman Material
The NonlinearHoffman
defines an orthotropic material using Hoffman yield criterion and associative plasticity.
The yield surface is defined as
with
The constants are defined as follows.
The Hoffman function allows different yield stresses for tension and compression. To recover the original Hill yield
function, simply set
The hardening function
History Layout
location | parameter |
---|---|
initial_history(0) |
accumulated plastic strain |