Mechanical APDL Basic Analysis Guide - Ansys

Chapter 1: Getting Started with ANSYS
material property set into the ANSYS database, you can associate that set with any material number you
wish.
1.1.4.7. Specifying a Default Read/Write Path for Material Library Files
Before you create any material library files, define a default read path and write path for those files:
Command(s): /MPLIB,R-W_opt,PATH
GUI: Main Menu> Preprocessor> Material Props> Material Library> Library Path
Note
The ANSYS-supplied material library is located at \Program Files\Ansys
Inc\v130\ANSYS\matlib.
In place of R-W_opt, specify READ (to set the read path), WRITE (to set the write path), or STAT to see what
read and write paths currently are in use. In place of PATH, specify the path to be used for material library
files.
1.1.4.8. Creating (Writing) a Material Library File
To create an archival material library file, perform these steps:
1. To tell the ANSYS program what system of units you are using, issue the /UNITS command. For example,
to specify the international system of units, you would issue the command /UNITS,SI. You cannot access
the /UNITS command directly from the GUI.
2. Define a material property using the MP command (Main Menu> Preprocessor> Material Props>
Isotropic). To do so, you must specify a material number and at least one material property value (for
example, magnetic permeability or MURX).
3. From the PREP7 preprocessor, issue the command shown below:
MPWRITE,Filename,,,LIB,MAT
Filename is the name to assign to the material library file. Issue MPWRITE (Main Menu> Preprocessor>
Material Props> Material Library> Export Library) and specify the filename for the material library file.
Issuing MPWRITE writes the material data specified by material number MAT into the named file in the
current working directory. (If you previously specified a material library write path by issuing the /MPLIB
command (Main Menu> Preprocessor> Material Props> Material Library> Library Path), ANSYS writes
the file to that location instead.)
Naming conventions for a material library file are as follows:
• The name of the file is the name you specify on the MPWRITE command. If you do not specify a filename,
the default name is JOBNAME.
• The extension of a material library filename follows the pattern .xxx_MPL, where xxx identifies the
system of units for this material property sets. For example, if the system of units is the CGS system,
the file extension is .CGS_MPL. The default extension, used if you do not specify a units system before
creating the material library file, is .USER_MPL. (This indicates a user-defined system of units.)
16
Release 13.0 - © SAS IP, Inc. All rights reserved. - Contains proprietary and confidential information
of ANSYS, Inc. and its subsidiaries and affiliates.