Run the Analysis

Run the Analysis

  1. Ensure that both the input file and structural interface file are in the same directory (and the HIN file if applicable). All job files must have the same name. For example MyJob.inp and MyJob.sif.
  2. Open a command prompt by clicking the Command Shell icon on your desktop (any Windows command prompt will work as well).
  3. Navigate to the directory where the files are stored.
  4. Enter the appropriate syntax for the Abaqus, ANSYS, or Nastran job. See the examples below for reference.

Abaqus

The example below demonstrates how to submit an Abaqus model (example.inp and example.sif) from the command prompt (in this case with Abaqus 2017):
>>abq2017 job=example

ANSYS

The example below demonstrates how to submit a model (example.cdb and example.sif) from the command prompt with ANSYS 18.0:
>>ansys-helius 180 example.cdb

Nastran

The example below demonstrates how to submit a model (example.nas and example.sif) from the command prompt with Autodesk Nastran.

>>Nastran example.nas
Note: To run the analysis with Nastran In-CAD, enable the Import Structural Model check box in the nonlinear static analysis options and browse for the *.nas or *.bdf file exported from Advanced Material Exchange. Refer to the Edit topic in the Nastran In-CAD help for more details.

Environment File Considerations

Prior to running a job with Abaqus, you will need to setup the abaqus_v6.env file. The usub_lib_dir variable in the abaqus_v6.env file should point to the directory holding the user material subroutine. The user material subroutine is located in the installation directory (usually C:\Program Files\Autodesk\Helius PFA 2019\). As an example, consider the case for a model run with Abaqus 2017:
usub_lib_dir = 'C:/Program Files/Autodesk/Helius PFA 2019/bin/abaqus/2017'
Use forward slashes (/) rather than back slashes (\).

Only double precision analyses are supported. Set the double_precision parameter in the abaqus_v6.env file as follows:
double_precision = BOTH