Description

The Nastran format supports both Nastran and Nastran-L database export. The regular format (Nastran) reads 8 characters for real values whereas the large format (Nastran-L) reads 16 characters. Both formats are based on the commercial software product of the same name (Ref. 17). Only CTRIA3 elements are supported and are exported as shell surfaces.

When the Nastran format is selected, the presented Export Database panel (shown below) contains a single frame: Nastran Options. This frame contains the Use Nastran Large With Columns option for specifying whether the Nastran-L format should be used on export (option checked on) or not (option unchecked).

Nastran Database Export Options
The Export Database panel for the Nastran file format.