An aluminium beam

This is an example of an aluminium beam with pre-determined notch subjected to base acceleration excitation. Random fatigue analysis is running with *FREQUENCY_DOMAIN_RANDOM_VIBRATION_FATIGUE using Dirlik's method. *DATABASE_FREQUENCY_BINARY_D3FTG, *DATABASE_FREQUENCY_BINARY_D3PSD and *DATABASE_FREQUENCY_BINARY_D3RMS are used for post-processing of the results. Example 7.2 from LS-Dyna training class NVH, Fatigue and Frequency Domain Analysis with LS-DYNA by Yun Huang.

*BOUNDARY_SPC_SET
*CONTROL_IMPLICIT_EIGENVALUE
*CONTROL_IMPLICIT_GENERAL
*CONTROL_IMPLICIT_NONLINEAR
*CONTROL_TERMINATION
*DATABASE_BINARY_D3PLOT
*DATABASE_FREQUENCY_BINARY_D3FTG
*DATABASE_FREQUENCY_BINARY_D3PSD
*DATABASE_FREQUENCY_BINARY_D3RMS
*DEFINE_CURVE_TITLE
*ELEMENT_SHELL
*END
*FREQUENCY_DOMAIN_RANDOM_VIBRATION_FATIGUE
*KEYWORD  
*MAT_ELASTIC
*NODE
*PART
*SECTION_SHELL_TITLE
*SET_NODE_LIST
*TITLE

*KEYWORD
*TITLE
Aluminium_beam
*FREQUENCY_DOMAIN_RANDOM_VIBRATION_FATIGUE
         1        10     0.000     0.000         0         
  0.035000         0         0     0.000     0.000         0
         1         0         1  0.000000         1         1         1         
         0         0         0     0.000                   1
         0         0         3         1         0         0         0         0
         2         1         0   1800.00
         1         2         0         1                                       2
*DATABASE_FREQUENCY_BINARY_D3PSD
         1
    10.000 300.00000       290         0         0
*DATABASE_FREQUENCY_BINARY_D3RMS
         1
*DATABASE_FREQUENCY_BINARY_D3FTG
         1
*CONTROL_IMPLICIT_EIGENVALUE
        10     0.000         0-1.000E+29         01.0000E+29         2     0.000
         0         0         0         0         1
*CONTROL_IMPLICIT_GENERAL
         1     0.000         2         1         2         0         0         1
*CONTROL_IMPLICIT_NONLINEAR
         1         0         0     0.000     0.000     0.000     0.000     0.000
         0         0         0         0
         0         0     0.000         1         2
*CONTROL_TERMINATION
  1.000000         0     0.000     0.000     0.000
*DATABASE_BINARY_D3PLOT
  1.000000         0         0         0         0
         0
*BOUNDARY_SPC_SET
         1         0         1         1         1         1         1         1
*SET_NODE_LIST
         1     0.000     0.000     0.000     0.000MECH
      5867      5865      5870      5868      5863      5862      5864      5866
      5869      5871      5873      5872      2221      2222      2223      2224
      2225      2226      2215      2216      2217      2218      2219      2220
*PART
aluminum_beam
         1         1         1         0         0         0         0         0
*SECTION_SHELL_TITLE
beam
         1        18  1.000000         3         0         0         0         0
  0.001270  0.001270  0.001270  0.001270     0.000     0.000     0.000         0
*MAT_ELASTIC
         1 2800.00007.0000E+10  0.330000     0.000     0.000         0
*ELEMENT_SHELL
*NODE
*DEFINE_CURVE_TITLE
PSD_vertical
         1         0     0.000     0.000     0.000     0.000         0
          10.0000000           0.0400000
          25.0000000           0.0400000
          50.0000000           0.1320000
         150.0000000           0.3320000
         170.0000000           0.6000000
         200.0000000           0.6000000
         250.0000000           0.5340000
         280.0000000           0.2668000
         300.0000000           0.2000000
*DEFINE_CURVE_TITLE
SN_FAT71
         2         0     0.000     0.000     0.000     0.000         0
      1.0000000e+005      1.0890000e+008
      1.0000000e+008      4.0600000e+007  
*END