Post crack behaviour in ANSYS for concrete beam-column connection.

Have a prob in Analysing  FEM discrete model of Beam column connection [both monolithic and precast] for crack behaviour indisplacement controlled cyclic loading program.

Tried with various values of closed and open crack and co-efficient. 

applied -1 for crack and changed even the keypoint

in stiffness multiplier also 0.6 also set keypoint 7 to "1" instead of default value "0"

But even by all these the analysis runs only for 0.3mm of deflection.. 

Can any one here kindly help me out in this? I would like to know the features/options related to crack propagation in ANSYS.

This would surely b helpful to other students and research scholars.

Eagerly waiting for the reply

-Kavi