How to define Poisson's ratio according to plastic strain defined in plastic behavior?

[ilaali]

Hi,
Does anyone know how to define a material in ABAQUS in which the Poisson's ratio (V) is not fixed and is dependent on plastic strain?
I mean plastic strains which I entered in material plastic behavior.

 

[Mustaine3]

There is no option to create such a relationship. A basic assumption is, that the plastic behavior is incompressible.
See Theory Manual publications like that

http://www.ewp.rpi.edu/hartford/~ernesto/F2012/MEF2/Z-Links/Papers/Wilson.pdf

You could try to use Field Variables to overcome that behavior. But i'm not sure if it is possible or if it makes sense.

 

[IceBreakerSours]

I agree with Mustain3's comments. It may be best to tell us WHY you think you need to change the Poisson's ratio. What are you trying to model? Why are you modeling it?

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