Reply To: LS Prepost to calculate J integral

[Jim Day]

By keyword file, I meant the LS-DYNA input file ... probably either Sample.k or SampleJ.k in your case.
With d3plot already open, select File>Open>LS-DYNA Keyword File from the top menu bar to open Sample.k or SampleJ.k. Answer "yes" to the question "Is this the same model as the d3plot file". Then proceed as usual in the operations to calculate the J-integral.