Calibrate spheres to mimic real soils

Submitted by gukargl on Mon, 07/01/2013 - 15:37


What would be the best way to calibrate the simulated particles to behave like a real granular soil and how to demonstrate this?
Is there a way to run some virtual triaxial and shear tests which can be compared to real measurements?
Has somebody done already so and would be willing to share some information?


zamir | Mon, 07/01/2013 - 17:18

There is a textbook on this subject: Particulate Discrete Element Modeling: A Geomechanics Perspective by Catherine O'Sullivan. As well, there is a paper, Utili and Nova 2008, that actually publishes DEM paramters from calibration studies. Utili and Nova (2008) only describes underconslidated soils, and also, only in 2d. A quick lit search will yeild many papers that describe calibration methodology. However, it is very much non-standardized and you will likely have to do some of your own parameter studies.