Mechanical APDL Basic Analysis Guide

Use the LCWRITE command (Main Menu> General Postproc> Load Case> Write Load Case) to write
the load case currently in memory to a load case file.The file is named Jobname.Lnn, where nn is the
load case number you assign. Using nn in subsequent load case combinations will refer to the load
case stored on the load case file.

The following example illustrat es the use of the LCWRITE command:

LCDEF,1,5! Load case 1 points to load step 5

LCDEF,2,7! Load case 2 points to load step 7

LCDEF,3,10! Load case 3 points to load step 10

LCASE,1! Reads load case 1 into memory

LCOPER,MAX,2! Stores max. of database and load case 2 in memory

LCWRITE,12! Writes current load case to Jobname.L12

LCASE,3! Reads load case 3 into memory

LCOPER,ADD,12! Adds database to load case on Jobname.L12

LCDEF,STAT! Results in the following output:

Sample Output from LCDEF,STAT

LOAD CASE= 1 SELECT= 1 ABS KEY= 0 FACTOR= 1.0000

LOAD STEP= 5 SUBSTEP= 2 CUM. ITER.= 4 TIME/FREQ= .25000

FILE=beam.rst

Simply supported beam

LOAD CASE= 2 SELECT= 1 ABS KEY= 0 FACTOR= 1.0000

LOAD STEP= 7 SUBSTEP= 3 CUM. ITER.= 10 TIME/FREQ= .75000

FILE=beam.rst

Simply supported beam

LOAD CASE= 3 SELECT= 1 ABS KEY= 0 FACTOR= 1.0000

LOAD STEP= 10 SUBSTEP= 2 CUM. ITER.= 12 TIME/FREQ= 1.0000

FILE=beam.rst

Simply supported beam

LOAD CASE= 12 SELECT= 1 ABS KEY= 0 FACTOR= 1.0000

LOAD STEP= 0 SUBSTEP= 0 CUM. ITER.= 0 TIME/FREQ= .00000E+00

FILE=beam.l12

Simply supported beam

Using the RAPPND command (Main Menu> General Postproc> Write Results), you can append the
load case currently in memory to the results file. The data are stored on the results file just like any
other results data set except that:

• You, not the program, assign the load step and substep numbers used to identify the data.


• Only summable and constant data are available by default; non-summable data are not written to
  the results file unless requested (LCSUM command).

The following example illustrat es use of the RAPPND command:

/POST1! Following a 2 load step analysis

SET,1! Store load step 1

LCDEF,1,2! Identify load step 2 as load case 1

LCOPER,ADD,1! Add load case 1 to database (ls 1 + ls 2)

RAPPND,3,3! Append the combined results to the results file

! as ls 3, time = 3

SET,LIST! Observe addition of new load step to results file

You can use the RAPPND command to combine results from two results files (created with the same
database.) You can use the POST1 FILE command (Main Menu> General Postproc> Data & File Opts)
to "toggle" between the two results files to alternately store results from one and append to the other.

Release 15.0 - © SAS IP, Inc. All rights reserved. - Contains proprietary and confidential information

Additional POST1 Postprocessing