POTENTIAL

Description

The potential object classes define the dissipation potentials within a gen_evp behavior assembly. Each potential given describes an inelastic strain mechanism, along with the hardening variables which affect its evolution. We can generally combine an arbitrary number and mix of the potentials in order to create complex behaviors. This combination is however not verified for physical compatibility so a particular assembly should be extensively studied under simple volume element loadings.

Syntax

**potential potential_type [ name ]

The types and number of sub-options is dependent on the potential type and is thus left to be described with the potential types. The types available are summarized below:

CODE	DESCRIPTION
gen_evp	classical plasticity using un-coupled isotropic and kinematic hardening
non_associated	need info
delobelle	special kinematic hardening evolution with multiple tensor variables
gen_evp2	modified gen_evp with different hardening variables
coupled_recovery	kinematic recovery which couples the back stresses
associated	completely associated version of classical plasticity
z6_gen_evp	un-associated interactions compatible with Z6
mises_2m1c	Complex interaction and criterion 2M1C
memory	gen_evp with strain-range memory
suvic	SUVIC complex hardening evolutions

If the option name is given, the names of the inelastic deformation tensors will be constructed from the names given. By default the names will be generated automatically based on the type and number (by order of definition) of each potential. It is generally advised to use the names ev for the first viscoplastic potential and ep for the first plastic potential.