Running Netfabb Simulation

Thermal analysis

To run the model, from a command line run

$ pan -b 09_thermal

The analysis progress is written to file 09_thermal.out. To check progress run

$ tail 09_thermal.out

After the analysis completes, the last few lines of the output file 09_thermal.out should be similar to the following:

 inc =     26 time =  1982.8118   iter =  1 eps = 0.14619E+03
 inc =     26 time =  1982.8118   iter =  2 eps = 0.81148E-12
Finished writing file results\09 thermal 26.case Finished writing file results\09 thermal 26_c.case 
Writing record:         2, time:  1982.81176470588
Increment end
CPU wall for increment 26 = 00:00:00.24, since start = 00:00:24.16
Layer end

Mesh preview volume =   791.560000000000
Activated volume   =   791.560000000000
Activated percentage =  100.0000000000000

Finished writing file .\09 thermal.case
Finished writing file .\09 thermal_c.case

Analysis completed

CPU wall for printing = 00:00:06.82
CPU wall = 00:00:24.24
Approximate single thread simulation time = 00:03:51.79


Peak RAM used for this process = 200,808 kB

END Autodesk AM Process Simulation

Actual CPU times will differ.

Quasi-static mechanical analysis

Run the first analysis from the command line:

$ pan -b 09_mechanical

The analysis progress is written to file 09_mechanical.out. To check progress run

$ tail 09_mechanical.out

After the analysis completes, the last few lines of the output file 09_mechanical.out should be similar to the following:

----------------------------------
Substrate removal time increment
----------------------------------
inc =     28 time =  101982.81   iter =  1 eps = 0.38664E+04 
inc =     28 time =  101982.81   iter =  2 eps = 0.18544E-08

Optimizing rigid body motion...
Initial RMS displacement          =    3.923235E-01
Optimized RMS displacement        =    3.844405E-01
Number of optimization iterations =        253
Rotation matrix =
    1.000000E+000   4.866337E-006   -3.057756E-007
   -4.866336E-006   1.000000E+000    4.373661E-006
    3.057969E-007  -4.373660E-006    1.000000E+000
Translation =     1.016759E-004   -9.147503E-005   7.824827E-002

Finished writing file results\09 mechanical 28_f.case 
Finished writing file results\09 mechanical 28.case 
Increment end
CPU wall for increment 28 = 00:00:00.73, since start = 00:00:35.81
Layer end

------------------------------------------------------ 
  Total number of equilibrium iterations:      56

Mesh preview volume  =   791.560000000000
Activated volume     =   791.560000000000
Activated percentage =  100.0000000000000


Signal tag 6850
*** CRITICAL WARNING: 1
Code 1041
Recoater interference detected at three layer groups. 
Minimum clearance of 55.819 percent at height

Finished writing file .\09 mechanical_f.case
Finished writing file .\09 mechanical.case

Analysis completed

****************************
3 Warnings
****************************

****************************
1 Critical warning
****************************
CPU wall for substrate removal = 00:00:00.79
CPU wall = 00:00:35.87
Total thermal & mechanical simulation time = 00:01:00.11
Approximate single thread simulation time = 00:09:00.01

Peak RAM used for this process = 666,068 kB

END Autodesk AM Process Simulation

Actual CPU times may differ.

Run the second analysis from the command line:

$ pan -b 09_mechanical_ppla

The analysis progress is written to file 09_mechanical_ppla.out. To check progress run

$ tail 09_mechanical_ppla.out

After the analysis completes, the last few lines of the output file 09_mechanical_ppla.out should be similar to the following:

----------------------
*COOL time increment
----------------------
CPU wall for printing = 00:00:14.93
HTOR is being set to zero***
 inc =      27 time =    51982.812    iter =    1 eps =    0.30443E+05
 inc =      27 time =    51982.812    iter =    2 eps =    0.91997E-09
Finished writing file results\09_mechanical_ppla_27.case
Increment end
CPU wall for increment 27 = 00:00:00.62, since start = 00:00:33.93
Layer end
CPU wall for cooldown = 00:00:00.62

------------------------------------
Plasticity iteration #     1
------------------------------------
 inc =     28 time =    101982.81    iter =    1 eps =    0.42428E+04
 inc =     28 time =    101982.81    iter =    2 eps =    0.18250E+04
 inc =     28 time =    101982.81    iter =    3 eps =    0.73849E+03
 inc =     28 time =    101982.81    iter =    4 eps =    0.51441E+03
 inc =     28 time =    101982.81    iter =    5 eps =    0.69360E+03

Signal tag 6C79
*** CRITICAL WARNING: 1
  Code 1028
Residual is increasing. Reducing time step.

Switching plasticity algorithm

------------------------------------
Plasticity step
CPU wall for plasticity = 00:00:01.82
--------------------------------------
Plasticity progress 0.333333333333333
 inc =      28 time =   68649.478    iter =   1 eps =   0.62402E+02
 inc =      28 time =   68649.478    iter =   2 eps =   0.13592E+01
 inc =      28 time =   68649.478    iter =   3 eps =   0.30879E-02
--------------------------------------
Plasticity progress 0.666666666666667
 inc =      28 time =   85316.145    iter =   1 eps =   0.38341E+03
 inc =      28 time =   85316.145    iter =   2 eps =   0.36994E+02
 inc =      28 time =   85316.145    iter =   3 eps =   0.87706E+00
 inc =      28 time =   85316.145    iter =   4 eps =   0.32971E-02
--------------------------------------
Plasticity progress 1.00000000000000
 inc =      28 time =   101982.81    iter =   1 eps =   0.41306E+04
 inc =      28 time =   101982.81    iter =   2 eps =   0.17265E+04
 inc =      28 time =   101982.81    iter =   3 eps =   0.70514E+03
 inc =      28 time =   101982.81    iter =   4 eps =   0.47470E+03
 inc =      28 time =   101982.81    iter =   5 eps =   0.64633E+03

Signal tag 4803
*** CRITICAL WARNING: 2
Code 1028
Residual is increasing. Reducing time step.

Reducing plasticity step
Relaxation factor:   0.500000000000000
New plasticity step:   0.166666666666667
--------------------------------------
Plasticity progress 0.833333333333333
 inc =       28 time =   93649.478    iter =   1 eps =  0.10001E+04
 inc =       28 time =   93649.478    iter =   2 eps =  0.51633E+03
 inc =       28 time =   93649.478    iter =   3 eps =  0.39232E+02
 inc =       28 time =   93649.478    iter =   4 eps =  0.57632E+00
 inc =       28 time =   93649.478    iter =   5 eps =  0.11967E-02
--------------------------------------
Plasticity progress 1.00000000000000
 inc =       28 time =   101982.81    iter =   1 eps =  0.35728E+04
 inc =       28 time =   101982.81    iter =   2 eps =  0.13446E+04
 inc =       28 time =   101982.81    iter =   3 eps =  0.36232E+03
 inc =       28 time =   101982.81    iter =   4 eps =  0.63633E+02
 inc =       28 time =   101982.81    iter =   5 eps =  0.29341E+01
 inc =       28 time =   101982.81    iter =   6 eps =  0.18042E-01
 inc =       28 time =   101982.81    iter =   7 eps =  0.16248E-05
Finished writing file results\09_mechanical_ppla_28_f.case
Finished writing file results\09_mechanical_ppla_28.case
Increment end
CPU wall for increment 28 = 00:00:10.29, since start = 00:00:44.23
Layer end
CPU wall for plasticity = 00:00:08.48

----------------------------------
Substrate removal time increment
----------------------------------
 inc =      29 time =   151982.81   iter =   1 eps =   0.18879E+04
 inc =      29 time =   151982.81   iter =   2 eps =   0.13568E-08

Optimizing rigid body motion...
Initial RMS displacement          =   3.060009E-01
Optimized RMS displacement        =   2.961071E-01
Number of optimization iterations =      303
Rotation matrix =
   1.000000E+000    6.307352E-006    -1.31264E-007
  -6.307351E-006    1.000000E+000     4.942133E-006
   1.312952E-007   -4.942132E-006     1.000000E+000
Translation =     8.684601E-005    -1.257456E-004    7.717278E-002

Finished writing file results\09_mechanical_ppla_29_f.case
Finished writing file results\09_mechanical_ppla_29.case
Increment end
CPU wall for increment 29 = 00:00:00.84, since start = 00:00:45.07
Layer end

------------------------------------------------------
Total number of equilibrium iterations:       75
Mesh preview volume   =    791.560000000000
Activated volume      =    791.560000000000
Activated percentage  =   100.0000000000000

Signal tag 6DE0
*** CRITICAL WARNING: 3
Code 1041
Recoater interference detected at three layer groups. Minimum clearance of 55.819 percent
at height 5.600 mm.

Finished writing file .\09_mechanical_ppla_f.case
Finished writing file .\09_mechanical_ppla.case

Analysis completed

****************************
4 Warnings
****************************

****************************
3 Critical warnings
****************************

CPU wall for substrate removal = 00:00:00.90
CPU wall = 00:00:45.15
Total thermal & mechanical simulation time = 00:01:09.40
Approximate single thread simulation time = 00:13:18.20

Peak RAM used for this process = 820,176 kB

END Autodesk AM Process Simulation

Actual CPU times may differ. Note the plasticity steps at the end of the simulation, after the *COOL time increment and before the Substrate removal time increment.