Hello!!

I am doing a simulation in Abaqus of indentation in silicone (Ecoflex 00-10 from Smooth-On), but first I needed to find the material parameters. I had test data for compression and I used it to get the hyperelastic parameters for different models, using the evaluate function in Abaqus.

Later, I used the parameters of the 2nd order reduced polynomial (which was stable for all strains) to run an indentation simulation. My resultant force was 10 times bigger than my experimental results for indentation !!!(I calculate this force by adding the nodal force in the indentation area).

I verify the units and they are correct. I started to run new simulations with different diameters of indenter (to get a similiar diameter that the conic indenter used in the experimentation), this helped but my results still being 4 times bigger

Anybody can please tell me what is wrong??

I appreciate any help.

Thanks!!