Yade

Input Methods for Interparticle Mechanical Properties

Asked by 内山康太郎

I am Japanese. Sorry for my rude English ...
and, I am new to yade .... I am also new to programming and DEM.

Currently, soil particles are analyzed using the example (1) of a simple shear test .
The current challenge is to reflect mechanical properties between particles. That is, how to approach the behavior between soil particles.

Twisting moments and rolling moments are known to approximate the behavior between soil particles.

So, please give me a program, method, and advice on how to approximate actual soil particles based on a simple shear test example.

(1) https://gitlab.com/yade-dev/trunk/blob/master/doc/sphinx/tutorial/04-periodic-simple-shear.py

Question information

Language:
English Edit question
Status:
Solved
For:
Yade Edit question
Assignee:
No assignee Edit question
Solved by:
Jan Stránský
Solved:
Last query:
Last reply:
Revision history for this message
Best Jan Stránský (honzik) said : 		#1

Hello,

> I am Japanese. Sorry for my rude English ...
> and, I am new to yade .... I am also new to programming and DEM.

no need to repeat it every question :-)

(1) uses some significant simplifications (w.r.t real sand):
- is uses spherical particles
- it uses "simple" material law

"To approximate actual soil particles", you can improve one or both of these simplifications:
- you can use non-spherical particles - polyhedrons, clumps [2, Kozicki2012]
- you can use other material law, e.g. as you proposed using using twisting or rolling moments

A more detailed "program, method, and advice" strongly depends on details and definitions (such as "to reflect mechanical properties between particles", "to approach the behavior between soil particles", "to approximate actual soil particles"), what is not suitable on the simple approach, what results are expected, etc. etc.

Cheers
Jan

[2] https://www.yade-dem.org/doc/publications.html

Revision history for this message
内山康太郎 (kenkoutaro) said : 		#2

Thanks Jan Stránský, that solved my question.