Mechanical APDL Basic Analysis Guide

To avoid data mismatches when you are solving a subset of a model that was solved previously using
a different set of elements, do either of the following:

• Do not reselect any of the elements that were unselected for the solution currently being postpro-
  cessed.


• Remove the earlier solution from the database. You can do so by exiting from the program between
  solutions or by saving the database between solutions.

For more information, see the Command Reference for descriptions of the INRES,NSEL,APPEND,
PRNSOL, and SUBSET commands.

If you wish to clear the database of any previous data, use one of the following methods:
Command(s):LCZERO
GUI: Main Menu> General Postproc> Load Case> Zero Load Case

Either method sets all current values in the database to zero, therefore giving you a fresh start for further
data storage. If you set the database to zero before appending data to it, the result is the same as using
the SUBSET command or the equivalent GUI path, assuming that the arguments on SUBSET and APPEND
are equivalent.

Note

All of the options available for the SET command are also available for the SUBSET and

APPEND commands.

By default, the SET,SUBSET, and APPEND commands look for one of these results files:Jobname.RST,
Jobname.RTH, or Jobname.RMG. You can specify a different file name by issuing the FILE command
(Main Menu> General Postproc> Data & File Opts) before issuing SET,SUBSET, or APPEND.

7.1.3. Creating an Element Table

The element table serves two functions:

• It is a tool for performing arithmetic operations among results data.


• It allows access to certain element results data that are not otherwise directly accessible, such as derived
  data for structural line elements. (Although the SET,SUBSET, and APPEND commands read all requested
  results items into the database, not all data are directly accessible via commands such as PLNSOL,PLESOL,
  etc.).

Think of the element table as a spreadsheet, where each row represents an element, and each column
represents a particular data item for the elements. For example, one column might contain the average
SX stress for the elements, while another might contain the element volumes, while yet a third might
contain the Y coordinate of the centroid for each element.

To create or erase the element table, use one of the following:
Command(s):ETABLE
GUI: Main Menu> General Postproc> Element Table> Define Table
Main Menu> General Postproc> Element Table> Erase Table

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