Running Netfabb Simulation

Thermal Analysis

To run the original thermal model, from a command line run:

$ pan -b ht_bench_t

After the analysis completes, the last few lines of the output file ht_bench_t.out should be similar to the following:

Heat treatment step # 6
Heat treatment time = 21600.000
Furnace temperature = 25.000000
 inc =      58 time =    149724.69     iter =    1 eps =    0.32805E+01
 inc =      58 time =    149724.69     iter =    2 eps =    0.12222E+00
 inc =      58 time =    149724.69     iter =    3 eps =    0.23352E-02
Finished writing file results\ ht_bench_t_58.case
Finished writing file results \ ht_bench_t_58_c.case
Writing record:         6,   time: 149724.687500000
Increment end
CPU wall for increment 58 = 00:00:00.26, since start = 00:00:27.43

Mesh preview volume  =   9347.00000000000
Activated volume     =   9347.00000000000
Activated percentage =   100.000000000000

Finished writing file .\ ht_bench_t.case
Finished writing file .\ ht_bench_t_c.case

Analysis completed

****************************
   1 Warning
****************************

****************************
   1 Critical warning
****************************

CPU wall for heat treatment = 00:00:01.52
CPU wall = 00:00:27.50
Approximate single thread simulation time = 00:05:47.62


Peak RAM used for this process = 163,640 kB

END Autodesk AM Process Simulation
Actual CPU times will differ.

Quasi-static Mechanical Analysis

Run the original mechanical analysis from the command line:

$ pan -b ht_bench_m

After the analysis completes, the last few lines of the output file ht_bench_mechanical.out should be similar to the following:

Heat treatment step # 6
Heat treatment time =   21600.000
Furnace temperature =   25.000000
 inc =      60 time =    149724.69    iter =    1 eps =    0.20353E+07
 inc =      60 time =    149724.69    iter =    2 eps =    0.37248E-08
Finished writing file results\ ht_bench_m_60_f.case
Finished writing file results\ ht_bench_m_60.case
Increment end
CPU wall for increment 60 = 00:00:00.43, since start = 00:00:50.35
CPU wall for heat treatment = 00:00:04.46

----------------------------------
Substrate removal time increment
----------------------------------
 inc =      61 time =    199724.69    iter =    1 eps =    0.82766E+05
 inc =      61 time =    199724.69    iter =    2 eps =    0.67377E-09

Optimizing rigid body motion...
Initial RMS displacement          =    1.514962E-01
Optimized RMS displacement        =    1.415475E-01
Number of optimization iterations =         245
Rotation matrix =
   1.000000E+000 1.407032E-006 5.164031E-007
  -1.407033E-006 1.000000E+000 1.099464E-006
  -5.164015E-007 -1.099465E-006 1.000000E+000
Translation = -1.350128E-003 5.741085E-004 5.395620E-002

Finished writing file results\ ht_bench_m_61_f.case
Finished writing file results\ ht_bench_m_61.case
Increment end
CPU wall for increment 61 = 00:00:00.35, since start = 00:00:50.71

------------------------------------------------------
Total number of equilibrium iterations: 138

Mesh preview volume  =   9347.00000000000
Activated volume     =   9347.00000000000
Activated percentage =   100.000000000000

Finished writing file .\ ht_bench_m_f.case
Finished writing file .\ ht_bench_m.case

Analysis completed

****************************
   2 Warnings
****************************

****************************
   1 Critical warning
****************************

CPU wall for substrate removal = 00:00:00.42
CPU wall = 00:00:50.78
Total thermal & mechanical simulation time = 00:01:18.28
Approximate single thread simulation time = 00:15:30.10


Peak RAM used for this process = 441,012 kB

END Autodesk AM Process Simulation

Actual CPU times may differ. Now the restart simulations are performed. First the thermal model is rerun:

$ pan -b ht_bench_t_restart

After the analysis completes, the last few lines of the output file ht_bench_t_restart.out should be similar to the following:

Heat treatment step # 5
Heat treatment time = 41600.000
Furnace temperature = 25.000000
 inc =     57 time =    169724.69    iter =    1 eps =    0.26334E+01
 inc =     57 time =    169724.69    iter =    2 eps =    0.42881E-01
 inc =     57 time =    169724.69    iter =    3 eps =    0.46977E-03
Finished writing file results\ ht_bench_t_restart_57.case
Finished writing file results\ ht_bench_t_restart_57_c.case
Writing record:        5 , time:       169724.687500000
Increment end
CPU wall for increment 57 = 00:00:00.21, since start = 00:00:13.75

Mesh preview volume  =   9347.00000000000
Activated volume     =   9347.00000000000
Activated percentage =   100.000000000000

Finished writing file .\ ht_bench_t_restart.case
Finished writing file .\ ht_bench_t_restart_c.case

Analysis completed

****************************
   1 Warning
****************************

****************************
   1 Critical warning
****************************

CPU wall for heat treatment = 00:00:01.12
CPU wall = 00:00:13.81
Approximate single thread simulation time = 00:01:09.28


Peak RAM used for this process = 156,144 kB

END Autodesk AM Process Simulation

Actual CPU times will differ, but note the restart Wall time is about 1/2 of the original thermal simulation Wall time. Now run the new heat treatment mechanical simulation:

$ pan -b ht_bench_m_restart

After the analysis completes, the last few lines of the output file ht_bench_mechanical.out should be similar to the following:

Heat treatment step # 5
Heat treatment time = 41600.000
Furnace temperature = 25.000000
 inc =    59 time =    169724.69    iter =    1 eps =   0.18048E+07
 inc =    59 time =    169724.69    iter =    2 eps =   0.37577E+03
 inc =    59 time =    169724.69    iter =    3 eps =   0.11876E+03
 inc =    59 time =    169724.69    iter =    4 eps =   0.21538E+00
 inc =    59 time =    169724.69    iter =    5 eps =   0.16486E-05
Finished writing file results\ ht_bench_m_restart_59_f.case
Finished writing file results\ ht_bench_m_restart_59.case
Increment end
CPU wall for increment 59 = 00:00:00.89, since start = 00:00:18.06
CPU wall for heat treatment = 00:00:03.91

----------------------------------
Substrate removal time increment
----------------------------------
 inc =     60 time =     219724.69    iter =   1 eps =   0.37665E+05
 inc =     60 time =     219724.69    iter =   2 eps =   0.36257E-09

Optimizing rigid body motion...
Initial RMS displacement          =     1.594341E-01
Optimized RMS displacement        =     1.499788E-01
Number of optimization iterations =         192
Rotation matrix =
   1.000000E+000   -2.294900E-006    5.682330E-006
   2.294871E-006    1.000000E+000    5.040080E-006
  -5.682341E-006   -5.040066E-006    1.000000E+000
Translation =   -2.696877E-003    9.007319E-004    5.387724E-002

Finished writing file results\ ht_bench_m_restart_60_f.case
Finished writing file results\ ht_bench_m_restart_60.case
Increment end
CPU wall for increment 60 = 00:00:00.32, since start = 00:00:18.39

------------------------------------------------------
Total number of equilibrium iterations: 37

Mesh preview volume  =    9347.00000000000
Activated volume     =    9347.00000000000
Activated percentage =    100.000000000000

Finished writing file .\ ht_bench_m_restart_f.case
Finished writing file .\ ht_bench_m_restart.case

Analysis completed

****************************
   1 Warning
****************************

****************************
   1 Critical warning
****************************

CPU wall for substrate removal = 00:00:00.39
CPU wall = 00:00:18.45
Total thermal & mechanical simulation time = 00:00:32.26
Approximate single thread simulation time = 00:03:24.65


Peak RAM used for this process = 427,920 kB

END Autodesk AM Process Simulation

Actual simulation times will differ, but again note the simulation time using the restarted input file is about 1/2 of the original simulation.