Thank you for your response.
That sounds precisely like the answer I was looking for. Despite the fact that your .inp and .bat files (and the custom .py script, I am guessing) were generated in Matlab, rather than C++, it sounds like you were able to do the thing I was mostly concerned with -...
Is it possible to control the Abaqus kernel directly from within a C++ application? The idea it to generate the object topology using a user-defined set of rules (whatever they might be) on the C++ side, then feed that topology into Abaqus, perform an FE analysis (whatever it might be), then...