Hello,

I would like to use a UMAT and it would be very helpful, to have more than eight property constants for the user-defined Material in the Input-File for the analysis.

I tried

*USER MATERIAL, CONSTANTS=10

210000.0,0.3,1.0,1.0,1.0,1.0,1.0,1.0,1.0,1.0

but then in the UMAT every Position in PROPS above 8 equals 0.0. So it seems as if abaqus doesn't use the last two (in this case) props.

I also tried

*USER MATERIAL, CONSTANTS=10

210000.0,0.3,

1.0,1.0,

1.0,1.0,

1.0,1.0,

1.0,1.0

which gave me an error saying that there is something wrong with the data lines.

It would be very helpful, if anyone could tell me how to use more than 8 PROPS.

By the way I want to use a hardening-table as used in abaqus for isotropic hardening in the UMAT, thats why I need more than eight constants. Right now I'm reading it from a .txt-File for every Integration-Point, which should take a lot of time...

Thank you!

Tiago