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Nastran online calculations


PRESENTATION

The Nastran input files are converted into Code_Aster thanks to our Vega file conversion tool. Then, the calculation is performed on our server with the solver Code_Aster. Calculated fields are available to the MED format viewable in Gmsh or Salome.

vega-web 
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The offer of on-line calculations with Nastran syntax is open free of charge. However the data files (batch file and networking) are limited in size to 100 kb to ensure good quality of the free offer of service.

 

Our premium offer allows you to launch any Nastran study size on our servers. Please contact us.

NASTRAN FEATURES HANDLED BY VEGA

Here is the list of features that are handled by Nastran-VEGA and allows a resolution with Code_Aster.

Keyword Description
BEGIN BULK Mandatory
CBAR, CBEAM Fields : EID, PID, GA, GB, X1, X2, X3
CELAS2, CELAS4  
CEND  
CMASS2  
CORD2C, CORD2R, CORD2S Basic coordinate system only (no RID)
CROD  
CTRIA3, CQUAD4, CTRIA6, CQUAD8, CQUAD, CTETRA, CHEXA, CPENTA, CPYRAM  
DAREA  
DEFORM  
DLOAD  
DMIG Stiffness and Mass matrix only, not loading (no UACCEL, CDSHUT, ...)
EIGRL  
END DATA Mandatory
FORCE Both in Control Section and in Bulk Data Section
FORCE1, FORCE2  
FREQ1  
FREQUENCY  
GRAV No CID
GRDSET  
GRID No replication format, long data format experimental only
K2GG  
INCLUDE Supported by engine but not yet by input page
LOAD Only if scale factors not used (or unitaires)
LOADSET  
M2GG  
MAT1 Fields : MID, E, G, NU, RHO, A, TREF, GE
MATS1 Fields : MID, TID, TYPE
METHOD  
MOMENT  
MPC Both in Control Section and in Bulk Data Section
PBAR  
PBARL, PBEAML No cross-section group, only "I Beams" and "Rectangular Beams"
PROD No Coefficient to determine torsional stress, No nonstructural mass per unit length
PSOLID Fields : PID, MID (no material coordinate system)
PSHELL No MID2, MID3, MID4, Transverse shear thickness ratio or Fiber distances
RLOAD2 Fields : EXCITEID, TB
RBAR Fields : EID, GA, GB, CNA
RLOAD2  
RBE2  
RBE3 Not UM
SDAMPING  
SEALL  
SLOAD  
SOL STATICS (24), SESTATIC (101), SEMODES (103), SEBUCKL (105), NLSTATIC (106), SEMFREQ (111) 
SPC, SPC1, SPCD Both in Control Section and in Bulk Data Section, no enforced velocities or acceleration
SPCADD  
SPOINT  
SUBCASE  
SUBCOM  
SUBSEQ  
SUPER  
TABDMP1 Only CRIT
TABLED1 Only LINEAR/LINEAR
TABLES1  
TITLE  

TEST EXAMPLES

RUN YOUR NASTRAN STUDIES FOR FREE

Free trial our Vega-Nastran offer ! Your file to Nastran syntax will be translated by our Vega converter into Code_Aster files, then the calculation will be launched on our server. Note: to ensure quality of service, the free offer is limited to studies of small size and does not allow more than 1 GB of memory.

PREMIUM OFFER

Kindly contact us for access to the service.

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