Shear test data evaluation fail in ABAQUS

Dear all,



I am currently perform a curve fitting for material coefficient determination.

In my hand, i have a set of stress strain data from the shear test.

I try to import the data as planar test data in ABAQUS.

However, when i try to evaluate the material to get two term moooney rivlin coefficient out, it shows the following message.

"Material evaluation cannot be carried out with planar test data alone unless Reduced Polynomial, Arruda-Boyce or Marlow potentials only are used."



Is there any way i can bypass this dialog and get the coefficient or i need to go back to the lab for doing an unixaial testing?





Thank you.