Finite Element analysis is divided into pre-processing, analyzing, post-processing
Abaqus document:http://abaqusdoc.ucalgary.ca
The first stage: using tools such as Tetgen \ Netgen to tetrahedron the STL model file, if it is Netgen, set the boundary set to facilitate subsequent processing. You can use Calculix's pre-processing toolkit CCX for preprocessing, commands such as send Set1 ABQ nam \ Send set2 ABQ pres \ Send all ABQ.
Second stage: can be processed using Abaqus or Calculix
Phase III: INP files can usually use the *node Print command to output node information, in aabqus environments, usually in the CMD environment input Abaqus JOB=JOB.INP Inter to submit the job.
*node Print keyword table:
*preprint, Echo=no, Model=no, History=no, contact=no the process, model data and historical data of INP files are not recorded in *.dat.
Http://abaqusdoc.ucalgary.ca/books/usb/default.htm?startat=pt02ch04s02abv01.html#usb-out-houtputvar
Abaqus\calculix FEA Notes