Dear Dr. Michael Okereke . Thanks for your videos about Abaqus modelling and simulation part on porous materials..... If you share the python script will be very much useful for further knowledge sharing and guidance. Thanks in advance Dr.
Best 5 minutes spent ever! Hello Michael. Can you please explain if this method may be used to generate a statistically random microstructure for flexible materials like paper (which is often used in medical test strips etc.)? Thank You.
Hello @Soumya Roy, thanks for your comments. For being able to use this approach for paper, I am not sure. It really depends on the microstructure. Here, it is a random spherical shaped microstructure. For paper, it is more of fibrous arrangements (randomly oriented in the microstructure) in which case you need to do it differently.
I'm doing my PH.D at CONICET INTEMA UNMDP and my thesis is about optimizing 3d printed models for trabecular bone tissue scaffolds so this info of producing 3d random RVEs is very essntial for me, thank you very much. I wanted to try doing this tutorial on my own, but when I checked the links in the description it says the MontCarlGen3Dv1.0: is "coming soon!" and I can only do 2d RVE's right? but this video was implemented in 3d RVE, is it still being polished? any other way I can try to follow along with the 3d model of the tutorial? So far in my job I've been modeling RVE's in Comsol Multiphysiscs by using either Periodic boundary conditions or the Module "Cell Periodicity" which gives me de Elastic or Compliance Matrix of my periodic RVE in Voigt notation, but I can't do that with random pores the way I'm doing it, periodic conditions assume a "source" and "destiny" for the boundaries and if they don't match in my model, they can't calculate the result, so I can't, for example, have a big hole in one of the walls of my RVE and a tiny one or a smooth one on the opposite wall, as the periodicity of the microestructure is not being respected, I was tring to fix it by making sure no pore was coming out of my RVE, but that would mean I'll always have some remanent "solid thickness" on my pore distribution and I'm not sure that's a correct answer no matter how close I make the pores to the walls. Best Regards.
Hello @AdolChistin, thanks for your comment. I am still going to make publicly available the 3D version of MontCarlGen. For you current problem, you can download my Python script that I used in this video and test it out for your system. I left the link to the script in the description section of the video (you just signin in to CM Videos Insider) and then you will get this page: www.cmvideos.org/downloadable-resources/. Please visit this page and you will be able to download my python script for creating the domain and that should help you with your work for now at least until MontCarlGen3D is released (which will generate this type of script) or you can create your own. Thanks.
Hi Michael. i would like to understand how to determine no collision between two balls. I think this may be the core of the algorithm or is there a better solution than the iterative method?
Hello, thanks for the query. I believe what you mean here is how to prevent two particle inclusions to touch and overlap themselves, as this is not realistically acceptable. I made a video about checking the overlap critera during the model generation stage. It is certainly at the heart of the model generation steps. Here is the part in that video where this was discussed: th-cam.com/video/by5gvqcU0j0/w-d-xo.html
I became a big fan of you about the computational modelling. Thank you for the educational videos.
You're very welcome @Enidentictok!
Dear Dr. Michael Okereke . Thanks for your videos about Abaqus modelling and simulation part on porous materials..... If you share the python script will be very much useful for further knowledge sharing and guidance. Thanks in advance Dr.
There is a link in the description section of the view for downloading the script. I believed it is there.
@@MichaelOkereke Yes, Dr Michael I got it.......Thanks
Best 5 minutes spent ever!
Hello Michael. Can you please explain if this method may be used to generate a statistically random microstructure for flexible materials like paper (which is often used in medical test strips etc.)? Thank You.
Hello @Soumya Roy, thanks for your comments. For being able to use this approach for paper, I am not sure. It really depends on the microstructure. Here, it is a random spherical shaped microstructure. For paper, it is more of fibrous arrangements (randomly oriented in the microstructure) in which case you need to do it differently.
I'm doing my PH.D at CONICET INTEMA UNMDP and my thesis is about optimizing 3d printed models for trabecular bone tissue scaffolds so this info of producing 3d random RVEs is very essntial for me, thank you very much. I wanted to try doing this tutorial on my own, but when I checked the links in the description it says the MontCarlGen3Dv1.0: is "coming soon!" and I can only do 2d RVE's right? but this video was implemented in 3d RVE, is it still being polished? any other way I can try to follow along with the 3d model of the tutorial?
So far in my job I've been modeling RVE's in Comsol Multiphysiscs by using either Periodic boundary conditions or the Module "Cell Periodicity" which gives me de Elastic or Compliance Matrix of my periodic RVE in Voigt notation, but I can't do that with random pores the way I'm doing it, periodic conditions assume a "source" and "destiny" for the boundaries and if they don't match in my model, they can't calculate the result, so I can't, for example, have a big hole in one of the walls of my RVE and a tiny one or a smooth one on the opposite wall, as the periodicity of the microestructure is not being respected, I was tring to fix it by making sure no pore was coming out of my RVE, but that would mean I'll always have some remanent "solid thickness" on my pore distribution and I'm not sure that's a correct answer no matter how close I make the pores to the walls.
Best Regards.
Hello @AdolChistin, thanks for your comment. I am still going to make publicly available the 3D version of MontCarlGen. For you current problem, you can download my Python script that I used in this video and test it out for your system. I left the link to the script in the description section of the video (you just signin in to CM Videos Insider) and then you will get this page: www.cmvideos.org/downloadable-resources/.
Please visit this page and you will be able to download my python script for creating the domain and that should help you with your work for now at least until MontCarlGen3D is released (which will generate this type of script) or you can create your own. Thanks.
Hi Michael. i would like to understand how to determine no collision between two balls. I think this may be the core of the algorithm or is there a better solution than the iterative method?
Hello, thanks for the query. I believe what you mean here is how to prevent two particle inclusions to touch and overlap themselves, as this is not realistically acceptable. I made a video about checking the overlap critera during the model generation stage. It is certainly at the heart of the model generation steps. Here is the part in that video where this was discussed: th-cam.com/video/by5gvqcU0j0/w-d-xo.html