As portliner menioned, abaqus reads python. Python is simply a coding language and one can just use a text editor to create a python script. Abaqus can generate a 3d model from an IGES file or from the directly coded python script with file extension .inp. unfortunately, simply supplying 3d coordinates is not sufficient as abaqus needs the abilit to interpret how these coordinates are linked together. In a typical .inp there is a modal matrix or matrices that describe the coordinates in space and a element matrix or matrices that describe how the coordinates are linked. There is more information in the .inp like material and cross section info...but you get the fundamental issues that im talking about. You might be able to input the coordinates in solidworks and make a shell with a specified thickness.