Hi all !
I am a new LIGGGHTS user and followed EngineerDo's tutorial for the silo particle dimension (https://www.youtube.com/watch?v=bCfCpjNuSVQ).
I used his code and tried to modify it for my problem, i.e. the generation of a powder bed particle for Selective Laser Melting. I created my substrate, which consists of a rectangular box of 0.5x0.3x0.3 (L,w,h, all in mm), and a blade which should spread the particles on the substrate after they fall from the insertion face.
ISo I also create the Insertion Face, which is a 0.5x0.3 rectangular plance, 0.15 mm above the top of the substrate.
From EngineerDo's script, I didn't modify much, except the particle size distribution, as you can see on the attached file (a *.txt file, which is a *.liggghts file when I use it of course).
When I launch the simulation (on a Windows Subsystem for Linux, with all my stl files and the LIGGGHTS input file all in the same folder from which I lauch the simulation with lmp380 -in input.liggghts<\code>, I got the following return on the terminal (see below), with the last line (
WARNING: 'All_in yes' did not succeed (../tri_mesh_planar_I.h:95)
repeated until I stop everything.
I don't understand what is wrong (probably related to the insertion face, as I did not follow EngineerDo's tutorial as he extrude his insertion face, while I understood that it had to be a plane and not a volume), as I did not found online anybody who had the same issue before ... After two days and half of trying to modify my stl files, my particles size etc., I decided to register here as this forum helped me with previous issues.
Thank you in advance for your help, do not hesitate to tell me if some infos are missing, I tried to be the more precise I could ;)
LIGGGHTS (Version LIGGGHTS-PUBLIC 3.8.0, compiled 2021-09-29-09:34:41 by faron, git commit 86544c3f1215bc9744d7929e3eacf53ba086af9e)
Created orthogonal box = (-2.55 -2.55 -0.05) to (2.55 2.55 5)
1 by 1 by 1 MPI processor grid
WARNING:
The contact model you specified is not located in any whitelist.
Because of this the model will be run in an unoptimized version (increasing runtime by up to 20%). In order to optimize this model you have the following options:
(i) Run the genAutoExamplesWhitelist.sh script in your LIGGGHTS(R) source folder to automatically parse the input script
(ii) Add the model combination by hand to your style_contact_model_user.whitelist that can be found in your LIGGGHTS(R) source folder
If you perform one of the steps above LIGGGHTS(R) needs to be recompiled to generate the optimized code.
(../contact_models.h:364)
Reading STL file 'substrate.stl' (mesh processing step 1/3) Reading STL file 'recoater.stl' (mesh processing step 1/3)
WARNING:
The contact model you specified is not located in any whitelist.
Because of this the model will be run in an unoptimized version (increasing runtime by up to 20%). In order to optimize this model you have the following options:
(i) Run the genAutoExamplesWhitelist.sh script in your LIGGGHTS(R) source folder to automatically parse the input script
(ii) Add the model combination by hand to your style_contact_model_user.whitelist that can be found in your LIGGGHTS(R) source folder
If you perform one of the steps above LIGGGHTS(R) needs to be recompiled to generate the optimized code.
(../contact_models.h:364)
Fix particledistribution/discrete (id pdd1): distribution based on mass%:
pts1: d=1.500000e-02 (max. bounding sphere) mass%=7.000000%
pts2: d=1.600000e-02 (max. bounding sphere) mass%=13.000000%
pts3: d=1.800000e-02 (max. bounding sphere) mass%=18.000000%
pts4: d=2.000000e-02 (max. bounding sphere) mass%=25.000000%
pts5: d=2.200000e-02 (max. bounding sphere) mass%=17.000000%
pts6: d=2.800000e-02 (max. bounding sphere) mass%=11.000000%
pts7: d=3.600000e-02 (max. bounding sphere) mass%=6.000000%
pts8: d=4.500000e-02 (max. bounding sphere) mass%=3.000000%
Fix particledistribution/discrete (id pdd1): distribution based on number%:
pts1: d=1.500000e-02 (max. bounding sphere) number%=15.118831%
pts2: d=1.600000e-02 (max. bounding sphere) number%=23.135418%
pts3: d=1.800000e-02 (max. bounding sphere) number%=22.498260%
pts4: d=2.000000e-02 (max. bounding sphere) number%=22.779489%
pts5: d=2.200000e-02 (max. bounding sphere) number%=11.637906%
pts6: d=2.800000e-02 (max. bounding sphere) number%=3.652688%
pts7: d=3.600000e-02 (max. bounding sphere) number%=0.937428%
pts8: d=4.500000e-02 (max. bounding sphere) number%=0.239981%
Reading STL file 'Insertionface.stl' (mesh processing step 1/3)
Setting up run at Mon Oct 4 15:16:48 2021 Import and parallelization of mesh substrate containing 12 triangle(s) successful
Import and parallelization of mesh recoater containing 12 triangle(s) successful
Import and parallelization of mesh ins_mesh containing 2 triangle(s) successful
INFO: Particle insertion ins: 109.157293 particles every 3333 steps - particle rate 327.504629 (mass rate 1.250000e+00)
1310 particles (mass 4.999929e+00) within 39996 steps
Memory usage per processor = 48.5062 Mbytes
Step Atoms KinEng CPU
0 0 0 0
WARNING: 'All_in yes' did not succeed (../tri_mesh_planar_I.h:95)
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