nastran-mtract

NASTRAN Mesh Extractor

Mesh wrangler for NASTRAN finite element files.

Purpose is to extract node position/numbering to nodos.csv file and generate element index files for easy Matlab processing. Only manages to extract nodes for now. Fully working executable in whittileaks.com under Elementos Finitos.

Instructions

Run executable in directory above that of the NASTRAN file, which should be in .dat format.

Follow on screen instructions (spanish). Use arrow-keys to navigate and press [ENTER]/[INTRO] to select option.

Boundary conditions (SPC) will be printed with a zero column which does not correspond to any value.

Outputs

nodos.csv

nodeNumber, x, y, z, csys/t

ElementType(NumberofNodes)-(CollectorNumber).csv

elementNumber, Node1, Node2, Node3, ... , NodeN

ConstraintType-(CollectorNumber).csv

affectedDOF , ElementNumber, NodeMaster, NodeSlave1, NodeSlave2, ... , NodeSlaveN

BoundaryCondition-(CollectorNumber).csv

AffectedDOF , 0, NodeNumber

Force-(CollectorNumber).csv

csys , AffectedNode, x-Force, y-Force, z-Force

Written in Go.