I’m doing a simulation of a compression test with an hyperelastic material, defined with Mooney-Rivlin 2 parameters, on Ansys.

I’m obtaining different results making both displacement controlled and load controlled:

If I set a 3 mm linear displacement, I obtain a 30 N force reaction;

If I set a 30 N linear load, I obtain a 4 mm deformation.

I tried changing the strain rate because hyperelastic material should change the deformability with the strain rate, but it doesn’t change at all the results.