I want to model my material in both tension and compression. Currently, I have modeled my plastic strain to be 0.735%. However, I want to model my plastic strain separately in both compression (0.73%) and tension (0.63%), because my material property behaves differently in compression and tension. How would I do that?

Current material model:

*Material, name=MAT_224
*Density
420.979,
*Elastic, type=ENGINEERING CONSTANTS
1.1237e+09, 1.12958e+09, 1.95767e+09,       0.427,       0.232,       0.234, 3.81746e+08, 4.22857e+08
5.18783e+08,
*Plastic
1.32143e+07,      0.
1.45945e+07, 0.00735
*Potential
0.574,    0.577,       1.,  0.60795, 0.673421, 0.826188