NASTRAN Error Messages

The following table lists NASTRAN error messages that may be displayed by Creo Elements/Direct Finite Element Analysis. Often the problem is that a study setup is incomplete, or NASTRAN encounters resource problems (exceeded disk space or memory). Use this list to check the NASTRAN error message and eliminate the problem.
 
NASTRAN Message Comments Possible Causes
3008 MODULE = GP2   NASTRAN real memory too low 
3008 MODULE = GP4   NASTRAN real memory too low 
MESSAGE 3008 MODULE = GP1    NASTRAN real memory too low 
SYSTEM FATAL MESSAGE 3008, INSUFFICIENT CORE  AVAILABLE FOR SUBROUTINE   NASTRAN real memory too low 
6413 (DFMSA)   NASTRAN real memory too low 
MESSAGE 1221 (GALLOC)   NASTRAN scratch files too big
MESSAGE 316 (IFPDRV)   Assembly analysis: Missing material definition
3060 SUBROUTINE MODEL OPTION NAST NOT IN APPROVED LIST   Licensing problem for NASTRAN
MESSAGE 9050 (SEKRRS)  
  1. Model insufficiently constrained
  2. Assembly analysis: Missing mating relations 
ERROR 4276.IONAST   ERROR CODE     923 PID=   0   NASTRAN runs out of disc space for scratch files or for results files 
MESSAGE 815 (RDINIT)   Creating NASTRAN databases failed
MESSAGE 2101 (GP4)   Assembly analysis: Conflicting Restraints

Possible reasons that cause NASTRAN to fail:

Model insufficiently constrained
Rigid body motions occur (for Linear Static). Make sure that the part/assembly can't move or rotate in any possible direction without inducing stress. Constrain the body in all coordinate directions.

Thermal Analysis analysis only: The minimum conditions to have the model completely constrained are:
Either to have at least a fixed temperature defined, or to have a convection boundary condition defined.

Assembly analysis: Missing mating relations
Make sure that all parts in the assembly you want to analyze are fully connected by mating relations.

Assembly analysis: Mated faces with very few elements
Due to very few elements on faces that are mated together there is only a weak coupling between the parts. This results in numerical problems for NASTRAN, or the results show an unexpected behavior. Make sure that each mated face has at least some nodes inside the overlapping area of both faces. (This problem often appears when two mating faces only have a small portion that overlaps.)

Assembly analysis: Missing material definition
Make sure that all parts in the assembly you want to analyze have a material assigned.

Assembly analysis: Conflicting Restraints
s is most likely caused by faces/edges/vertices restrained (i.e. fixed) and connected to other parts by mating relations.

NASTRAN real memory too low
Refer to:

Creating NASTRAN databases fails
Make sure you have read, write and execute permissions for the Solver Scratch Directory.
Refer to:

NASTRAN runs out of disk space for scratch files or for the Solver's input/output files
Make sure that that you have enough free disk space for: Refer to:

NASTRAN scratch files too big
Large models with more than 80000 nodes often need scratch space around 2 GB. Make sure your file system supports files bigger than 2 GB (refer to: Analyzing Large Models). Otherwise you can make NASTRAN split the required scratch space into several files less than 2 GB (refer to: Analyzing Large Models).