Hi,
I am working on planar tension test for hyperelastic material model (Polynomial 3rd order). The specimen size is 150x15x2mm. I wanted to understand the boundary conditions for the model. I have applied symmetry over ZX and YZ planes. What should be the boundary conditions for this test and which stress should I post processed? I have currently applied frictionless support on bottom surface and X=0 for left and right faces. I have physical test results that leads to 6.7MPa stress for 97% of strain and this doesn´t match with my simulation results currently.

I am working on planar tension test for hyperelastic material model (Polynomial 3rd order). The specimen size is 150x15x2mm. I wanted to understand the boundary conditions for the model. I have applied symmetry over ZX and YZ planes. What should be the boundary conditions for this test and which stress should I post processed? I have currently applied frictionless support on bottom surface and X=0 for left and right faces. I have physical test results that leads to 6.7MPa stress for 97% of strain and this doesn´t match with my simulation results currently.
