its better to input the results curve (plot) of da vs time.But for such problems the Abaqus will not give you perfect solution. Its better to use FE Safe of MSC Fatigue or LS Dyna.

Dear Arun Sir,

Thanks for the reply. I think i didn't communicate my problem well. I ave experimental Load - CMOD data of CT specimen. Now, want to input this in Abaqus to get J-integral. However, i get crack length vs time from my damage model follows Cohesive zone approach.

if meshing is done in Hypermesh for your model, then there is input card in HM, which will allow you to input the data table and after analysis it will give you J integral . Also the plots directly

Really,i didn't know this . I will try with my friends who works in Hyper mesh. Thanks a lot

excuse me i dont know what is CMOD?

is this a parameter? please help me about compliance method