help Rec146
  ABAQUS total force output to MATLAB
  
  Syntax
      #Rec# = Fil2str('*.fil');
      #out# = Rec146(#Rec#)
 
  Description
      Read total force output from the results (*.fil) file generated from
      the ABAQUS finite element software. The asterisk (*) is replaced by
      the name of the results file. The record key for total force output
      is 146 (only in ABAQUS/Standard). See section "Results file output
      format" in ABAQUS Analysis User's manual for more details.
      The following options with parameters have to be specified in the
      ABAQUS input file for the results (*.fil) file to be created and to
      contain total force results:
          ...
          *FILE FORMAT, ASCII
          *NODE FILE
          TF
          ...
      NOTE: The results file (*.fil) must be placed in the same directory
      with the MATLAB source files in order to be processed.
      
  Input parameters
      #Rec# (string) is an one-row string containing the ASCII code of the
          ABAQUS results (*.fil) file. It is generated by the function
          Fil2str.m.
  
  Output parameters
      #out# ([#n# x #m#]) is a double array containing the attributes of
          the record key 146 as follows:
          Column  1  –  Node number. 
          Column  2  –  First component of total force. 
          Column  3  –  Second component of total force.
          Column  4  –  Etc
          where #n# is the number of nodes multiplied by the number of
          increments and #m#-1 is the number of components of total forces
          per node. If the results file does not contain the desired
          output, #out# will be an empty array
 
  _________________________________________________________________________
  Copyright (c) 2016
      George Papazafeiropoulos
      Captain, Infrastructure Engineer, Hellenic Air Force
      Civil Engineer, M.Sc., Ph.D. candidate, NTUA
      Email: gpapazafeiropoulos@yahoo.gr
      Website: http://users.ntua.gr/gpapazaf/