CAD AND FEA SOLID MODEL GEOMETRY INPUT INTERFACE FOR MCNP

In recent years it has become industry practice to directly transfer CAD geometry from native CAD program directly into FEA codes to perform structural and thermal analyses. Many CAD interfaces and FEA programs also have the capability to export geometry into standard MCNP file format. This paper explores the process of exporting geometry for CAD and FEA programs and the benefits and limitations of the process.