Hi,

My names Chris, I am a beginner to SolidWorks simulation, my apologies if I use any incorrect terminology or assumptions.

But can someone please help me with a current project I am working on.

I am currently trying to model a rubber block being compressed by 2 metal plates (from top and bottom). I have attained raw stress-strain curve data from physical experimentation to

represent the material's non-linear elastic behavior.

So as of now, these are the things I have done to the model:

1) Draw the physical rubber block

2) Added forces of 1N @ the top and bottom of the rubber block, with a time dependancy using "Variation with Time" to represent the 2 blocks compressing the rubber. (force will be multiplied by the supplied time curve Y value)

3) Changed the Study time properties to match real life experimentation time

4) specified material properties with "Nonlinear Elastic", **Poisson ratio 0.4995**, Thermal Expansion 0.0002/K, **Mass Density 358 kg/m^3**, Tensile Strength 13789514 N/m^2

The only thing left which I do not quiet understand is the constraints I need to place on the mode, Can someone please help me with this ?

And please let me know if I left anything important out.

Thanks for your help

(Attached is the rubber block that needs to be compressed: Top/bottom face dimension = 150mm x 50mm)

Here is an error image when i try to constrain the top and bottom surfaces usign Reference Geometry. I have only allowed movement along "Plane Dir 2"