This option is used to specify the name of the ABAQUS input file to be output by the translator. It is also the default name of the file containing the NASTRAN data. Diagnostics created by the translator will be written to a file named job-name.log.

This option is used to specify the name of the file containing the NASTRAN data if it is different from job-name.

If this option is present, the value on the NASTRAN data line PARAM, WTMASS, value will be used as a multiplier for all density, mass, and rotary inertia values created in the ABAQUS input file.

This option can be defined in the ABAQUS environment file as follows:

fromnastran_wtmass_fixup={OFF | ON}

By default, each SUBCASE is translated to a *STEP option in ABAQUS. If this option is present, this behavior is altered for linear static analyses: each SUBCASE will be translated to a *LOAD CASE option, and all such *LOAD CASE options will be grouped in a single *STEP option.

This option can be defined in the ABAQUS environment file as follows:

fromnastran_loadcases={OFF | ON}

NASTRAN allows beams to have zero values for cross-sectional area or moments of inertia; ABAQUS does not. If this option is present, any zero values for , , , or on PBAR or PBEAM data will be reset to the specified small real number when the *BEAM GENERAL SECTION data are created for ABAQUS. If this option is present but is not given a value, the default value of 1.E–20 will be used in place of the zeros. If this option is omitted, zeros in the NASTRAN data will be translated to zeros in ABAQUS.

This option can be defined in the ABAQUS environment file as follows:

fromnastran_pbar_zero_reset=small_real_number

NASTRAN allows three-dimensional solid elements to have connectivities that, when translated to ABAQUS, result in a diagnostic for negative volume at all integration points. If this option is present, the translator will check for these “inside-out” solid elements and change their connectivities to make them valid in ABAQUS.

This option can be defined in the ABAQUS environment file as follows:

fromnastran_inside_out_solid_fixup={OFF | ON}

NASTRAN shell elements may have their orientations and offsets defined on the element connectivity. By default, all elements that reference a single PSHELL will be translated to a single *SHELL SECTION or *SHELL GENERAL SECTION in ABAQUS and the variation in their properties will be defined using the *ELEMENT PROPERTIES and *DISTRIBUTION keywords. If this option is present and set to OFF, a separate *SHELL SECTION or *SHELL GENERAL SECTION will be created for each element set that has a unique combination of orientation, offset, and/or thickness.

This option can be defined in the ABAQUS environment file as follows:

fromnastran_distribution={OFF | ON}