Material Calibration

Submitted by Mishal on Thu, 07/18/2024 - 13:13

Hi Guys

We are currently using LIGGGHTS to perform DEM analysis on a trouser chute for a bulk materials handling application.
I am familiar with using LIGGGHTS from an academic standpoint and I am able to use the software.

We currently have a test report, please refer to the attached image regarding the contents.
Does anyone have advice for using the test data to calculate input parameters for the DEM simulation?

Currently the parameters for the angle of repose can be attained by performing the bucket test on LIGGGHTS, implying the filling of a bucket with material which is then lifted and the angle of repose can be checked.

The wall friction can also be done using a flat plate with material on it which is rotated and the angle at which material flows can be recorded for calibration purposes.

Is there any advice that someone can provide?

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Mishal | Thu, 07/18/2024 - 15:23

In addition to the above mentioned tests, would performing a withdrawal test and rotating bucket test also assist?

further to this would the processes of determining all the values which go into LIGGGHTS be a trial and error exercise? Or is there a better way of doing it?

Alice12 | Tue, 08/06/2024 - 04:34

La calibración de materiales es un proceso crucial en la ingeniería y la fabricación que asegura Friday Night Funkin que los instrumentos y equipos utilizados para medir las propiedades de los materiales (como dureza, resistencia, elasticidad, etc.) funcionen con precisión y consistencia.

bekeanloinse56 | Wed, 10/16/2024 - 10:53

The bucket test approach for angle of repose calibration is solid. Run simulations with different particle contact properties (friction, rolling friction, restitution, etc.) until your simulation matches the experimental angle of repose. Ensure you're using particles that resemble the dinosaur game material you’re simulating in terms of size, shape, and density.