Hi everyone

I need help regarding material modelling in Ansys.
Actually we have obtained the stress-strain behaviour for slurry
infltrated fibre concrete experimentally. For FE modelling of a
circular ring of this SIFCON. I want to assign actual values in the
available material models. I tried to input + and - sign for tensile
and compressive stress-strain values respectively in multilinear
isotropic, but it did'nt accept -ve values. Suggestions from experts
are welcome.  If anymore detail is needed to clarify this querry I
can provide.