Definin Plastic material in ABAQUS
Definin Plastic material in ABAQUS
(OP)
Hi,
I am tryin to define a material porperties for a polycarbonate sheet in Abaqus 6.8 but I am finding it difficult.
I have defined:
Density
Poisson ratio
Young's modulus
I am trying to add the plastic property. I am tryin to enter the plastic strain values but due to the material softening, some stress values have two strain values.
Any idea on how to define the plastic property will be very helpful
P.s. I have attached the stress-strain graph.
I am tryin to define a material porperties for a polycarbonate sheet in Abaqus 6.8 but I am finding it difficult.
I have defined:
Density
Poisson ratio
Young's modulus
I am trying to add the plastic property. I am tryin to enter the plastic strain values but due to the material softening, some stress values have two strain values.
Any idea on how to define the plastic property will be very helpful
P.s. I have attached the stress-strain graph.





RE: Definin Plastic material in ABAQUS
RE: Definin Plastic material in ABAQUS
http://en.wikipedia.org/wiki/Monotonic_function
You'll need to simplify the material model to be able to use *PLASTIC, or look at a different type of model, such as viscoelasticity.
Just bear in mind that *PLASTIC is intended for metal plasticity, not for modelling polymers.
Regards
Martin Stokes CEng MIMechE
RE: Definin Plastic material in ABAQUS
Also, *Plastic is fine for modeling polymers. So long as you are not concerned about unloading behavior.