<FLOW> gsell#
Description#
This is a viscoplastic model appropriate for some polymer materials. It
includes some hardening behavior using the cumulated viscoplastic
multiplier
Note that at
Example#
A simple example of purely viscoplastic material follows. Because the
yield radius R0
is zero, the material is always flowing. The use
of elasticity in this case is also a pseudo-elasticity, attempting to
model a purely viscous material in a displacement based FEA model. The
higher the modulus, the more
***behavior gen_evp
**elasticity isotropic
young 100000.
poisson 0.48
**potential gen_evp ev
*isotropic constant
R0 0.0
*flow gsell
e0 1.e-5
K 40.0
w 65.
h 0.75
n 1.75
m 0.08
***return