.fil File not being created

I am trying to use this program to analyse a lattice of beams elements. I am currently trying to write a function that will create an INP file from an input of nodes and element arrays. Once this is done i am using your abaqus analysis function to generate the displacements of the nodes. i have in input file written with my function but when run by the abaqus2matlab analysis it does not generate a .fil file and throws an error.

Error using readFil (line 75)

The file Latticemod0_A2M.fil does not exist

Error in Abaqus_analysis (line 84)

U =readFil([ Inp_file '.fil' ], 101 );%Obtain the Nodal Displacement(U) ;

I was wondering if this is a formatting error of my INP file or if there is some other issue. Thanks

5 comments

5 Comments

danyal sultan

Aug 13, 2021

Hi George,

I am doing Non Linear Buckling Analysis by introducing imperfections.

After i do my linear buckling analysis. I was looking for File named (*fil) but no such file has been created in the folder. Though i get the result for buckling analysis.

Soon after I introduce imperfection for nonlinear Buckling analysis. The Abaqus says unable to process. I have repeated the whole process couple of times but i am stuck. Do you have any recommendation

George Papazafeiropoulos

Aug 15, 2021

Replying to

You should use the following options in the step level of the Abaqus input file, in order to properly generate the *.fil file in the linear buckling analysis:

*BUCKLE, EIGENSOLVER=LANCZOS
*FILE FORMAT, ASCII
*NODE FILE
U

After running this Abaqus analysis, you can read the fil file using Abaqus2Matlab and get the buckling eigenmodes for further processing of the results. Alternatively, to insert them as imperfections in a subsequent post-buckling analysis, you can specify the results file (results_file.fil), and specify the following option in the Abaqus input file of the post-buckling analysis:

*IMPERFECTION, FILE=results_file, STEP=step, NSET=name

Abaqus2Matlab v.3.0
A new way to post-process FEA

.fil File not being created

ABAQUS2MATLAB