hysteresis

[dermicha29]

dear all,

i´m using the neo-hookean model with hybrid elements and a high bulk modulus (10000 Mpa) for simulating an elastomer specimen. i would like to consider the hysteresis effekt as well but there´s allways the following error:

"Hybrid elements can be used with the hysteresis model only when the accompanying hyperelasticity is fully incompressible. "

is there a way to determine fully incompressibility beside using a high bulk modulus?

thanks in advance

michael freund
university of hannover
Germany

 

[Yoman228]

when they mean in "incompressible". Do they mean
pission Ratio =0.5? Just a gusses.