Define non symmetric material behaviour

[SJ8]

Dear all,
I'm working on a non-linear model in Abaqus in which I have to define a material with a non symmetric response in compression and tension.
Do you have any idea how I can put my material data splitting tensile and compression response. I want to define the stress-strain law putting the data points values.

Thanks in advance.

 

[FEA way]

It depends on what type of material you want to model and what kind of deformation (elastic or permanent/plastic) and associated phenomena you want to take into account. Some models, such as cast iron plasticity, distinguish between tension and compression behaviors.

 

[ShiningEngineer]

Hello,

Abaqus offers the possibility to implement material data from test data. You can enter Experimental data set as Compression test and 1 for Tension. I assume you have an elastic material with non-linear deformations? Then take a look at the Abaqus documentation on hyperelastic modelling.