Environmental Variables for LS-DYNA ================================================= 1. LSTC_FILE: Defines the license file. The default filename is /usr/local/lstc/LSTC_FILE. To define the license file, use the following command: setenv LSTC_FILE (license file name) 2. LSTC_DEFGEO: Defines the format for ASCII file DEFGEO to be DaimlerChrsyler's format. If you do not define this variable, the program defaults to the standard LS-DYNA format. To output DaimlerChrsyler's format do the following: setenv LSTC_DEFGEO chrysler 3. LSTC_FORMAT: Defines the format for the d3plot and d3thdt output files. This variable allows the user to output the binary plot files in ANSYS format as well as both ANYSYS and LS-DYNA format. By not defining this variable the output files will be in standard LS-DYNA format. To output ANSYS format do the following: setenv LSTC_FORMAT ansys To output ANSYS and LS-DYNA format do the following: setenv LSTC_FORMAT taurus+ansys Note that the user can also control the output format with the *DATABASE_FORMAT command. 4. LSTC_BINARY: Define the word size of the d3plot and d3thdt files to be 32 bit IEEE. By using this option one can reduce the size of the output files which are created by 64 bit machines such as CRAY or any DOUBLE precision versions. By not defining this variable LS-DYNA defaults to the word size of the machine. To invoke this option, do the following: setenv LSTC_BINARY 32ieee Note that the user also can control the output size in column 8 of the *CONTROL_OUTPUT command. For example, *CONTROL_OUTPUT $NPOPT NEECHO NREFUP IACCOP OPTIFS IPRINT IKEDIT IBINARY , , , , , , , 1 5. LSTC_MEMORY: Controls memory extension. The user can set the default memory size by using the command line option "MEMORY" The "auto" option is useful for adaptive runs because it allows LS-DYNA to automatically extend memory. This option is for metal forming application only. Do not use it for the crash analysis. setenv LSTC_MEMORY auto 6. LSTC_ELENGTH: Controls minimum length of shell elements. If the length of any shell elements is less than the defined value, the program will be terminated. setenv LSTC_ELENGTH 0.02 7. LSTC_D3DUMP: Cortrols the iutput of restart dump file. The "off" will disable the d3dump output. setenv LSTC_D3DUMP off